Preserve the car identity the rules require

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Course: Choose the race class that fits your car and goals

Module: Let rules shape the prep plan

Estimated duration: 55 minutes

A race car does not enter a class as a blank project. It enters as a claimed identity. In a production-based class, you are saying that this machine is still the car the rulebook says it is, with only the changes the rules allow. Your preparation plan has to protect that identity from the first parts order to the last pre-tech check.

That sounds administrative until you see how many real car-prep problems come from losing the thread. A door, fender, engine part, interior removal, decal layout, body repair, or weight change may look harmless when considered alone. But the official does not inspect the car as your personal build story. The official asks whether the vehicle in front of them conforms to its published class rules, whether its required identity marks can be read, whether its major bodywork and condition are acceptable, and whether its modifications have stayed inside the boundary the class actually permits.

The skill in this lesson is identity preservation. You are learning to prepare the car so that a scrutineer, race director, timing worker, grid worker, or competitor can recognize three things quickly: what car it is, what class it is claiming, and whether the visible and mechanical choices support that claim. This is not the same lesson as doing the minimum, buying class-staying parts, presenting the car neatly, or avoiding loophole builds. Those are sibling skills. Here, the narrower job is to keep the car from drifting away from the production model, year, class, and rule basis that make it eligible in the first place.

Start with the simplest principle: the rulebook defines the car more narrowly than your imagination does. In Spec Miata, for example, the class purpose is low-cost, production-based racing with limited modifications. The rule language ties the car to its model year through the firewall VIN, requires the VIN plates or stampings to remain in place, and says the firewall VIN takes precedence. It also says the Mazda factory shop manual for the specific make, model, and year must be available because it helps scrutineers identify parts and the configuration of the automobile. That tells you something important about the mindset. The factory identity is not background trivia. It is evidence.

The same rule pattern shows up outside Spec Miata. Race Experience National Classes are intended for mass-produced production automobiles that started life on an assembly line. Tube-frame, hand-built, composite, and other special-construction vehicles are not permitted. That class family may allow a broad range of modifications, but it still protects the starting identity. Vehicles must retain the general original silhouette and major bodywork pieces, bumpers, fascias, and doors. Each should stay recognizable as the production model it started as. The rule set can be more open, but the car still has to read as the car it claims to be.

NASA rules apply the same discipline from a different angle. Each competition vehicle must conform to the published rules for its class. Unauthorized modifications can bring penalties. A performance item modified without authorization is treated as illegal whether or not it actually produced an advantage. That means your identity plan cannot rely on intent. You may believe a part change is harmless, but the rule structure asks whether it is authorized and whether the item could potentially increase performance. If the answer is not clearly favorable, the car identity is already at risk.

So your prep plan needs a rulebook-facing definition of identity. For a production-based club car, identity has at least six layers. First is the paper identity: the class, year, model, VIN, published specification table, and any supplemental regulations for the event. Second is the factory identity: the parts, dimensions, assembly procedures, and configurations the manufacturer used for the correct year and application. Third is the class identity: the allowed modifications, required safety equipment, weight, and any explicit updating or backdating limits. Fourth is the silhouette identity: the body shape, major bodywork, doors, bumpers, fascias, and recognizable production form. Fifth is the competition identity: numbers, class letters, required decals, and markings that let officials read the car at speed. Sixth is the trust identity: the condition and preparation quality that make tech inspectors confident the car is not hiding a safety or legality problem.

You preserve the car by checking all six layers before you commit to changes. If you only ask whether a part fits, you are doing street-car thinking. If you ask whether it is allowed for the claimed year, whether it changes class, whether it changes silhouette, whether it affects a performance item, whether it creates a weight issue, and whether an official can inspect it without detective work, you are doing race-prep thinking.

The first sub-skill is anchoring the build to the correct car. For a class like Spec Miata, that starts with the VIN and the classified model year. The firewall VIN has special importance, and the rule says the original OEM VIN stamped on the firewall must correspond with the model year automobile classified. The practical lesson is that the firewall is not just sheet metal. It is part of the car identity record. If you are buying a shell, repairing crash damage, replacing panels, or evaluating a car with a history, you treat VIN integrity as a class-eligibility item, not just a title or resale item.

Your action is simple but serious. Before you buy parts, build a one-page identity sheet for the car. Record the sanctioning body, class, model, year, required minimum weight basis, VIN evidence, and the rule documents you are using. If the class points to a factory manual, put the correct manual in your prep materials and make sure it matches the car. Do not use a manual from a nearby year because the internet search was easier. The reason is not that paper is sacred. The reason is that factory documents give officials a way to identify standard parts and standard configurations. If you change the evidence base, you make the car harder to read.

The second sub-skill is treating authorization as a positive requirement. The Spec Miata language is especially clear: the authorized modifications are the only modifications and safety items permitted or required other than the safety items in the general section. It also says a permitted component or modification must not perform a prohibited function. That is a higher bar than simply not finding a sentence that bans the thing you want. You need a rule path that says the change is allowed, and you need to know that the allowed part is not being used to do something the rules still prohibit.

This matters because clever parts often have two identities. A duct can be a cooling aid, an aero aid, or a bodywork change depending on how it is installed. A repair can become a reinforcement. A legal interior removal can become a chassis modification if you cut structure that was not part of the allowed safety cell work. A replacement engine component can look physically similar but be wrong for the correct year and VIN. In Spec Miata, engines and internal components used in rebuilding or refurbishment must have been offered for sale by Mazda in the US for the correct year and VIN of the car unless the rules say otherwise. The rule explicitly prevents aftermarket parts or Mazda parts of incorrect specification or application. The lesson is not that Spec Miata is special. The lesson is that production-based classes often preserve identity through parts provenance, application, and standard dimensions.

Your technique is to write an authorization line for each meaningful prep choice. For each part or modification, write the rule section that allows it, the factory reference if needed, the class or weight consequence, and the inspection evidence you will bring. If you cannot write that line, pause. That pause is not bureaucracy. It is where you prevent a car from becoming illegal in small, confident steps.

The third sub-skill is preserving original silhouette and major bodywork. In a more open Race Experience class, the rules say the vehicle must retain the general original silhouette and all major bodywork pieces, including bumpers, fascias, and doors. Body panel modifications may be allowed for tire fitment and other permitted changes, but the larger identity still has to survive. That means the question is not only whether the car is faster or safer after the body change. The question is whether the production model remains recognizable.

Think of silhouette as the official's first visual test. From a distance, does the car still read as the production car it started as? Are the doors present and doing the job doors do? Are bumpers and fascias still part of the car? Have fender changes become a different body shape rather than tire-clearance work? The closer your car gets to special-construction language, the more you have to prove you are still inside a production-based category.

The practical boundary is that bodywork allowances are usually specific, not unlimited permission to reshape the car. If the rule allows rolling, flattening, or trimming arches to fit maximum class tires, use the minimum change that accomplishes that goal. Save photos of the before and after condition. Keep the removed material pattern understandable. Make the work look like clearance, not invention. A clean, narrow modification is easier to defend than a broad body redesign that you later try to explain as tire fitment.

The fourth sub-skill is separating safety-cell work from performance or identity drift. Race Experience rules allow certain chassis, interior, and safety-cell modifications, including examples such as a drop floor to accommodate a larger driver. Johnson also emphasizes that sanctioning bodies require rollover protection, belts and shoulder harnesses, and preparation that gives inspectors confidence that wheels, fuel lines, and other essentials will not fail. The safety layer is not optional. But safety permission is not a blank check to transform the underlying car.

Your planning question is: what modification is required for safety, and where does it stop? A cage, harness mounting, seat installation, fire system, and fuel-system safety work should be done so well that tech can poke, probe, and inspect without losing confidence. But once you cut, weld, remove, or relocate beyond the safety need, you may have crossed from safety preparation into a chassis or performance modification. That is why you document safety work with the rule basis, photos, measurements where relevant, and a simple explanation of function.

The fifth sub-skill is keeping visible competition identity readable. This is partly covered by the sibling lesson on presenting the car, so this lesson only uses the part that protects identity. Numbers and class designations are not decoration. NASA requires assigned car number and class designation on both sides, front, and rear. Side numbers must be at least ten inches tall with one and a half inch stroke, and front and rear numbers and class designations must be at least three inches tall. They must contrast and be legible at speed. Race Experience gives similar practical advice: numbers on both sides must be readable by Timing and Scoring, Course, and Grid workers at all times, class letters should sit adjacent to the numbers, and class should use the upper-case abbreviated form rather than being spelled out.

The identity lesson is that the car has to announce its claim. If your class letters are hidden in graphics, if the number color disappears against the wrap, or if the class abbreviation is missing where the series expects it, the car becomes harder to administer. That can create timing errors, grid confusion, protest confusion, and unnecessary attention from officials. A good identity layout lets the worker read the car without effort while the car is moving.

The sixth sub-skill is maintaining the car as a complete race vehicle through the event. NASA says major body components such as hood, trunk, doors, and similar parts must be maintained in normal position during all on-track activities. If missing bodywork becomes a hazard, the car may be black-flagged. A car finishing with missing bodywork may be penalized. It must also meet minimum weight after qualifying or racing when weighed without the missing body part. The deeper identity lesson is that the car you start with and the car you finish with both have to comply. If a part falls off, the problem is not only cosmetic. It may affect safety, weight, and class legality.

This is where preparation and contingency planning meet. Use fasteners, mounts, and repairs that keep major parts in normal position at track speeds. After any contact or off, inspect whether the car is still complete enough to continue and still heavy enough if weighed. If you replace missing parts or add weight during a race, remember that satisfying weight does not automatically satisfy class rules. NASA explicitly warns that adding weight to replace a part may satisfy weight but may not be legal under class rules. Do not treat ballast as a universal cure for missing identity.

The seventh sub-skill is building inspector trust. Johnson's advice is old-school and blunt, but it remains useful. When you go to your first event, tech inspectors are there to make sure the car meets safety regulations and generally conforms to the rules for legal preparation. They may be cautious about anything they have not seen before. The constructive response is to arrive with a car so well prepared that inspection can be thorough without finding something upsetting. Over time, a sanitary machine changes the relationship. The inspectors learn that your car is usually prepared in a way that deserves confidence.

Trust is not a substitute for legality, but it changes the texture of every inspection. A loose harness bolt, fuel line routing that looks improvised, missing numbers, body damage, primered panels, or unexplained nonstandard parts all say the same thing to an official: slow down and look harder. A clean car with readable markings, documented parts, clear safety work, and rule-consistent bodywork says: this entrant understands the job. You want the second message.

Now turn the principle into a preparation sequence.

Step one: identify the rule set and freeze the car claim. Write the class, year, model, minimum weight, and body identity before the build starts. If the class has a specification table, factory manual requirement, or published car list, make those documents part of the build file. If the car is in a class with broad allowances, write down the production identity that must remain recognizable.

Step two: inspect the starting shell. Confirm VIN evidence where required. Check that the firewall, major bodywork, doors, bumpers, fascias, and other identity-critical pieces are present, correct, and repairable. If the class turns on a specific year or configuration, flag any swapped parts immediately. This is where you prevent a project shell from becoming a rules argument later.

Step three: create a modification ledger. For every planned change, record whether it is required safety work, an expressly allowed class modification, a repair, a replacement, or a convenience change. Then record the rule basis. If the change is not tied to a rule allowance, it stays off the car until you can prove it belongs there.

Step four: protect factory configuration where the rules require it. In Spec Miata, assembly, rebuild, and refurbishment procedures and associated dimensions must follow published factory service procedures unless the rules say otherwise. Components may not be added or omitted from those specified by the factory procedures. All components must be standard dimensions. That means your engine and mechanical rebuild plan has to be more disciplined than a general performance rebuild. The goal is not the best part that fits. The goal is the legal part, correct for the car, assembled in the legal way.

Step five: make safety work obvious and finished. Roll protection, belts, shoulder harnesses, fuel systems, and other safety items should not look temporary or half-resolved. Johnson's example of an inspector finding unsafety-wired shoulder-harness mounting bolts is a useful warning because the issue is not glamorous. A small unfinished detail can make the whole car look suspect. Finish the safety work before tech, even if you expect to remove or adjust something later.

Step six: check exterior identity. Stand back far enough to judge silhouette. The Race Experience standard is not a formal measurement in the chunk, but its meaning is plain: the car should stay recognizable as the production model. Then check major bodywork, body damage, number placement, class letters, and required decals. NASA adds a condition rule: competition vehicles must look in good condition, and excessive body damage or primered body panels are prohibited. The car must satisfy the 50/50 standard, meaning it should look undamaged and straight at fifty mph from fifty feet unless a high official grants an exception.

Step seven: check event identity. Supplemental regulations may require sponsor or event decals. Required decals can be waived if unavailable at the event in the Race Experience rule language, but you still plan for them. Do not let a decal or graphics package interfere with required identification marks. NASA allows advertising and graphics only if they are in good taste, do not interfere with required identification marks, and do not conflict with series sponsors. That means the wrap design comes after the number and class-designation plan, not before it.

Step eight: weigh the car as it will run. NASA gives a five-pound leeway under the minimum published weight the first time the car is weighed at an event, then requires exact published weight with zero leeway for the rest of the event. The exact policy may differ by series, but the prep lesson is stable: identity includes weight. A car can look correct and still fail its claimed class if it does not meet the weight rule at the required time, with the driver and required ballast where the class says they belong.

Step nine: prepare the inspection packet. Bring the class rules, factory manual access if required, build ledger, part numbers where useful, photos of identity-sensitive repairs, and notes on any body or safety modification that might raise a question. You are not trying to overwhelm the official. You are making the car easier to read.

Step ten: keep the identity alive during the weekend. After every session, check number panels, class letters, decals, bodywork retention, and any damage that could affect appearance, hazard status, or weight. If a part comes loose, treat it as a rules issue, not merely a paddock nuisance. If a competitor raises a concern about your car or you suspect another car has illegal modifications, NASA's bad-faith protest rule is a reminder that concerns should be disclosed promptly to the competitor, entrant, team, or Race Director. Do not turn identity questions into gamesmanship.

Here is the key calibration cue: a legal identity-preserving build feels boring to inspect. The documents match the car. The car matches the class. The numbers and class letters can be read without squinting. The body still looks like the model it claims to be. The safety work looks finished. The major body parts stay on. The weight plan has margin. The prep decisions have rule citations. Nothing requires the official to imagine what you meant.

Another calibration cue is how your own planning conversations change. Early in your racing life, you may ask whether a part gives speed, whether it is affordable, or whether other cars run it. Once you are preserving identity, you ask: what class rule authorizes it, what factory configuration does it replace, what function does it perform, what official would need to verify it, and what evidence would make that verification easy? That shift is the lesson.

Identity errors have recognizable signatures. A VIN mismatch or missing identity stamping feels like a paperwork problem, but it can become a class-definition problem. A nonstandard engine internal feels invisible, but the rule may define legality by year, VIN, and factory availability. A body modification feels like fabrication quality, but the rule may define the car by original silhouette and major bodywork. A missing hood or trunk feels like incident damage, but it can become a hazard, penalty, weight, and class issue. Graphics feel like style, but they can hide required identification. Primered panels or excessive damage feel cosmetic, but appearance rules can prohibit them. A last-minute ballast fix feels practical, but it may not make a missing part legal.

The recovery is also structured. First, stop defending intent. Officials do not need to prove you meant to gain an advantage before they enforce many class rules. NASA's class-compliance language says unauthorized performance-item modifications are illegal whether or not they are a performance advantage. Second, return to the published identity. Replace incorrect parts with correct-year, correct-application, standard-dimension parts where the rules require that. Restore major bodywork and silhouette where the class requires it. Make numbers and class marks readable. Repair appearance issues before they become official issues. Third, document the fix so the same problem does not return.

For intermediate drivers, the trap is not usually wild cheating. The trap is treating a race car as a sequence of local optimizations. You improve a repair, choose a better part, simplify a panel, relocate something for convenience, borrow a component from a nearby year, change graphics, add weight, and assume each step is too small to matter. Identity preservation forces the opposite habit. You view each step through the claimed class. You are not just building a car. You are maintaining the chain of evidence that lets the car belong where you entered it.

That chain of evidence matters to the field. Race Experience rules openly acknowledge that broad rule sets can invite approaches that push beyond good sense and competition balance. When a modification approaches that level, loopholes may be closed or penalties and adjustments assigned. That is the series protecting the majority of competitors. Identity preservation is part of that same social contract. You are preparing a car that others can recognize, classify, and compete against fairly.

In the end, the best identity-preserving car is not the most stock-looking car or the least modified car. It is the car whose modifications are coherent with the exact class bargain. A Spec Miata preserves identity by staying tied to the correct VIN, year, factory service procedures, standard dimensions, and specifically authorized modifications. A Race Experience production car may have broader modification freedom, but it still preserves assembly-line origin, recognizable silhouette, and major bodywork. A NASA car preserves identity by conforming to its published class rules, maintaining required numbers and class designations, meeting weight, and avoiding unauthorized performance-item modifications. Different classes draw the line in different places. Your job is to know where your class draws it before the car teaches you the expensive way.

Worked example: Spec Miata identity starts at the firewall

Imagine you are building an NA or NB Miata for Spec Miata and the shell has been through several owners. The car has a cage, a stack of spares, and a seller who says it has always been an SM. Your identity-preservation job starts before you trust the spares pile.

The Spec Miata rule language ties the original OEM VIN stamped on the firewall to the model year automobile classified, and it says VIN plates or stampings must remain in place, with the firewall VIN taking precedence. So you inspect and record the firewall VIN first. Then you match the model year you intend to enter against the Spec Miata specification table and the correct Mazda factory shop manual. That manual is not optional in the rule chunk; it is required to be in the entrant's possession and is intended to help scrutineers identify parts and the automobile configuration.

Now walk through the build. If the engine has been rebuilt, you need to know that the internal components were offered for sale by Mazda in the US for the correct year and VIN of the car unless the SM rules otherwise allow them. If a previous owner used an aftermarket internal part because it was cheaper, stronger, or easier to source, the car identity has been weakened even if the engine runs well and makes no obvious extra power. The rule prevents aftermarket parts and Mazda parts of incorrect specification or application. If a component was added, omitted, or machined away from standard dimensions outside the rule allowance, the problem is not just mechanical. It is a class-identity problem.

A good SM preparation file for this worked example includes the VIN record, the correct factory manual access, a list of engine and drivetrain rebuild parts by application, notes on any repairs, and a clear modification ledger showing which changes are safety-required and which are SM-authorized. When you arrive at tech, the goal is not to debate that the car is probably a Miata. The goal is to make it easy to see that it is the correct Miata for the class and year it claims.

Worked example: a production-class car with wider tires and body clearance

Now imagine a mass-produced production car entered in a Race Experience National Class. The rule set is not a restricted ruleset in the same way Spec Miata is. It says modifications not specifically mentioned and outlined are permitted and do not incur an adjustment. That could tempt you to treat the body as open territory. The identity rule keeps you honest.

The car started life on an assembly line, and tube-frame, hand-built, composite, and other special-construction vehicles are not permitted. The chassis rule limits major chassis, frame, and unibody modifications unless otherwise allowed, needed for required items, needed for repair, or needed for driver safety-cell modifications. For bodywork and aero, the vehicle must retain the general original silhouette and all major bodywork pieces, bumpers, fascias, and doors. Each should stay recognizable as the production model it started life as.

Suppose you want to fit the maximum-width tire for the chosen class. The rule chunk allows body-panel modifications to facilitate installation of maximum-width tires and other allowed modifications without incurring a competition adjustment. Your correct technique is to make the minimum fender or wheel-arch change that gives safe clearance. Rolling, flattening, or trimming in that service is easier to explain than reshaping the quarter panel into a new body concept. The car should still be readable as the original model from the paddock lane and on course.

The worked boundary is this: tire-clearance work supports the claimed class identity when it is narrow, functional, and tied to an allowed modification. It threatens the car identity when it changes the silhouette, deletes major bodywork, or makes the car look more like a special-construction vehicle than a production model. The same physical tool can do either job. The rule reason and final shape decide which side you are on.

Worked example: missing bodywork after contact

A third example happens during the event rather than in the shop. You have a light contact or a fastener failure, and the car finishes a session with a damaged bumper cover, loose hood, or missing trunk panel. It is easy to think only about whether the car still drives straight. The identity-preservation view is broader.

NASA rules say major body components such as hood, trunk, doors, and similar pieces must be maintained in normal position during all on-track activities. If loss of bodywork is a hazard, the car may be black-flagged. A vehicle completing a race with missing bodywork may be penalized. The car must also meet the required minimum weight after qualifying or racing as weighed without the missing body part. The rules allow a competitor to pit to replace missing parts or add weight during the race if all other rules are followed, but adding weight may satisfy weight requirements while still not being legal in class rules.

So your response after the session is not just tape and optimism. You inspect whether the part can be secured in normal position, whether the damage creates a hazard, whether the car still meets appearance expectations, and whether weight is affected. If a required major body component is gone, you replace it if possible. If you add ballast, you still ask whether the class allows the car to continue without the part. This is the difference between solving a scale number and preserving the car's legal identity.

Common mistakes

The first mistake is assuming a rule set is open because it does not list your exact idea as forbidden. In a class like Spec Miata, the structure is the opposite. The permitted modifications and safety items are the only permitted or required changes outside the general safety requirements. Good looks like having a positive rule allowance before the part goes on the car.

The second mistake is confusing correct fit with correct application. A Mazda part, a production part, or a physically interchangeable part may still be wrong for the car if the class requires the correct year, VIN, specification, or standard dimension. Good looks like matching the part to the classed car, not merely to the bolt pattern.

The third mistake is letting safety work become unbounded fabrication. Safety equipment is required and should be done professionally, but safety permission does not automatically authorize major chassis or identity changes beyond the need. Good looks like clean safety work with a clear rule basis and no extra structural modification hiding under the safety label.

The fourth mistake is treating bodywork as style. In production-based classes, silhouette, major bodywork, doors, bumpers, fascias, and visible condition can be part of eligibility. Good looks like a car that remains recognizable as the production model, with functional clearance work kept narrow and major panels maintained.

The fifth mistake is making numbers and class letters part of a design exercise instead of an official communication system. Good looks like high-contrast, readable numbers and class designations where the series requires them, sized so timing, scoring, course, and grid workers can read the car at speed.

The sixth mistake is using ballast to excuse missing pieces. Weight matters, but a car can meet a number and still be wrong if the missing component is required by the class or bodywork rules. Good looks like replacing or securing the required part first, then checking weight with the car in the form the rules require.

The seventh mistake is arriving at tech with explanations instead of evidence. Good looks like a sanitary machine, finished safety details, correct documents, and a concise build ledger that lets the inspector verify the car without reconstructing your whole project history.

Drill: the identity-preservation audit

Do this drill before your next event and again after the first weekend if the car is new to you. It takes one focused evening in the shop plus a short follow-up at the track.

Round one is the paper claim. In thirty minutes, write the car's sanctioning body, class, model, year, VIN basis if relevant, minimum weight, and rule documents. Add the factory manual source if your class requires one or if the factory configuration is part of the rule logic. Success criterion: a crew member can read the sheet and tell you exactly what car identity you are claiming.

Round two is the modification ledger. Spend sixty to ninety minutes walking the car with the rulebook open. For each non-stock or race-prep item, label it as required safety, expressly allowed modification, repair, replacement, or questionable. Write the rule basis beside each item. Success criterion: every meaningful modification either has a rule path or goes onto a hold list for review before the event.

Round three is the silhouette and appearance check. Roll the car into open space, stand back, and inspect whether it still reads as the production model it claims. Check major bodywork, bumpers, fascias, doors, hood, trunk, body damage, primered panels, and number or class-mark visibility. Success criterion: the car can be identified by model and class quickly from both sides and does not need a verbal explanation to make its bodywork make sense.

Round four is the tech-confidence check. Pretend you are the most cautious official at the event. Tug on safety items, inspect fasteners, look for unfinished work, check fuel-line and harness presentation, verify decals and markings, and make sure required documents are in the tow vehicle or trailer. Success criterion: you find no issue that would force you to say you meant to fix it later.

Round five happens after the first on-track session. Recheck major bodywork retention, number and class-letter condition, required decals, and any damage. Success criterion: the car that comes off track still matches the identity you entered, including visible marks, body completeness, and likely weight condition.

Cross-references inside the module

This lesson sits between several neighboring skills. When you are deciding whether a part is merely allowed or also wise, cross-reference the lesson on drawing the line between minimum and wise. When the question is cost and replacement planning, cross-reference budgeting for class-staying parts. When the issue is number placement, decals, and legibility, cross-reference presenting the car so officials can read it. When the temptation is to exploit broad language in a way that hurts participation or invites penalties, cross-reference avoiding loophole builds that punish the field.

Keep the boundary clear. Identity preservation asks whether the car still belongs to the class it claims. The other lessons ask whether the plan is prudent, affordable, readable, or fair. A mature prep plan answers all of those questions, but not by mixing them together.

Author Review

No quiz questions are attached to this lesson.

Sources

#	Document	Chunk	Pages	Score	Collection
1	GCR_SM	8aaac52cf61cfb33dae2abb73f7a7a52	1	1	uio_books_raw_v1
2	RACE EXPERIENCE RULES	604138016d37f68b98367df2759011aa	42	1	uio_books_raw_v1
3	NASARules2023	da1a6d5663589da16780d79822713964	73	1	uio_books_raw_v1
4	HPDE Verbatim Master Compilation	6d244f43-85c2-2b99-82fa-6b67ec0f91dc	75	1	uio_books_raw_v1
5	Driving in competition None Johnson Alan 1935- None	e4f6a604-3cd4-1272-d619-b770fbca52de	34	1	uio_books_raw_v1
6	RACE EXPERIENCE RULES	8b8306320cebe18c608f4116fb38afa2	9	1	uio_books_raw_v1
7	Driving in competition None Johnson Alan 1935- None	5ede8de3-8eee-4c85-6699-e2cedc9cae21	19	1	uio_books_raw_v1
8	Under the green A complete guide to auto racing Johnny McDonald	89df7d24-b7a1-17a2-0916-81f345326edf	26	1	uio_books_raw_v1