Classic Car Inspection Checklist: What to Check Before You Buy
Check a classic in this order: the title and serial plate, the factory records, the numbers the seller is charging for, rust and structure, a cold start, the brakes and wiring, and a test drive. Then pay a specialist who knows the model to inspect it before you agree a price.
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A classic car inspection checklist follows the same order as any used car, with three extra jobs: prove the car's identity without a modern VIN, check what the seller says is original, and look harder for rust. Then have a specialist in that model inspect it before you agree a price.
Do the paperwork first. A title that doesn't match the plate on the car ends the viewing, however good the paint looks. Next, check the factory records and the numbers the seller is charging for. Look under the car for rust and old repairs, start it cold and drive it. Finish with a specialist's written report.
Print this page or use our general used car inspection checklist alongside it. The general list covers the walk-around and test drive. This page adds the checks that matter on an older car.
Before you go
Ask the seller for photos of three things before you travel: the title, the serial number plate on the car, and any factory or restoration paperwork. A seller who won't send them is worth noting.
Decide what condition you are paying for. Hagerty's condition scale runs from #1 (concours) to #4 (a driver with visible flaws). It gives you and the seller the same words for the car in front of you. Ask the seller which number they think it is, and why.
What to bring:
- A flashlight and a mat or piece of cardboard to lie on
- A small magnet for steel panels
- Your phone, charged, to photograph every number and plate
- Coveralls or old clothes
- A friend, for a second opinion and to watch for smoke at start-up
1. Title and serial number
Read the number on the title and find the same number on the car. On an older car it may be on a plate in the door jamb, on the dash, or stamped on the frame. Where it sits depends on the make and year.
Federal rules in 49 CFR Part 565 set today's 17-character VIN with a check digit, and the rule's model-year codes start at 1980. Cars built before that use shorter numbers in each maker's own format. That has two effects:
- Online decoders and history reports built for 17-character VINs may not work.
- You can't use a check digit to spot a mistyped or altered number.
So the plate itself matters more. Look at how it is fixed to the car. Ask about any replaced plate, odd rivets or fresh paint around it. The name on the title should match the seller. If the title is missing, or in someone else's name, stop until that is sorted.
2. Factory records
Some makers' build records survive. If they exist for the car, ask the seller for them, or order them yourself using the serial number:
- Ford, Lincoln and Mercury: Marti Auto Works issues Marti Reports for cars built in the US or Canada from 1967 to 2020. It says there is no data for 1966 and earlier.
- Pontiac: Pontiac Historic Services supplies copies of dealer invoices for 1961 to 1986 Pontiacs.
- Other makes: ask the marque club. Club members often know which records exist and where to request them.
A factory record shows how the car was built: options, colors and sometimes the selling dealer. Compare it with the car. If the record says a different engine or color, the seller should be able to explain why.
3. Numbers matching
"Numbers matching" usually means the engine still carries the codes it left the factory with. Some buyers also mean the transmission and rear axle. Ask the seller exactly which parts they mean.
- Photograph the engine stamp and any casting codes the seller points to
- Photograph the transmission and rear axle codes if they are part of the claim
- Compare them with the factory record or the serial number
- Ask a specialist for that model to read the photos before you pay extra for originality
Don't pay a premium for originality on the seller's word alone. A car with a replacement engine can still be a good buy if it is priced as one.
4. Rust and structure
Rust is the most expensive fault on most older cars. Look in good light and lie on the ground if you have to.
- Floor pans: lift the carpet and the trunk mat if the seller allows it
- Rocker panels and the bottoms of the doors
- Lower fenders and wheel arches
- Trunk floor and the spare-wheel well
- Frame rails and where the body bolts to the frame
- Around the windshield and rear window, where water sits
- Run a magnet over the lower steel panels; where it won't stick, there may be filler
A fiberglass or aluminum body doesn't rule out rust. The frame and inner structure can still be steel. Fresh undercoating over one area is worth a question. Ask what it covers and whether there are photos of the work.
5. Engine and cold start
Ask the seller not to run the car before you arrive, so you see it start cold.
- Hood up before start: look for oil and coolant leaks and the state of hoses and belts
- Check the oil and coolant; milky oil or oily coolant is a stop
- Watch the exhaust at start-up: blue smoke (oil) or white smoke that doesn't clear
- Listen for knocks or ticks that get worse as it warms
- Watch the temperature gauge while it idles
Ask your inspector about a compression or leak-down test. It shows the state of the engine's internals without taking it apart. Agree the price of that test before you book.
6. Brakes, wiring and tires
Older cars often have older parts in places you can't see.
- Ask when the brake lines, hoses and cylinders were last replaced, and for receipts
- Look for wiring with cracked insulation, scorched connectors or loose added circuits
- Ask which non-original parts have been fitted, such as an electrical upgrade or different brakes
- Read each tire's DOT date code on the sidewall; old rubber can look fine and still need replacing
7. The test drive
Drive the car the way you would use it, if the seller and the roads allow.
- Steering: note any free play or wander on a straight road
- Brakes: the car should stop straight, without pulling or a soft pedal
- Gears: listen for grinding or slipping, and check every gear, reverse too
- Temperature: watch the gauge in slow traffic as well as on the open road
- Gauges and lights: check they all work
- After the drive: look under the car again for fresh drips
Use our test drive checklist for the full list.
8. A specialist inspection
Pay someone who knows the model to inspect it. A marque club or a specialist shop can usually suggest a local inspector. A general pre-purchase inspection still helps for brakes, leaks and steering. A specialist is more likely to spot wrong parts and the faults that model is known for.
Ask for a written report with photos. Ask the inspector to list what they could not check, for example, if the car could not go on a lift.
When to walk away
- The title is missing, or the number on it doesn't match the car
- The serial plate looks moved, replaced or re-riveted, and the seller can't explain it
- The seller won't let you look underneath or start the car cold
- Structural rust in the frame or floors that the price doesn't reflect
- The seller charges for originality but won't show the numbers
- The seller won't allow an independent inspection
For more warning signs on any used car, see used car red flags.
This page is one part of Used Car Inspection Checklist: 10 Checks Before You Buy. Work the whole thing in order before you hand over any money.
Quick answers
Can I run a VIN check on a classic car?
Often not in the usual way. Federal rules in 49 CFR Part 565 set today's 17-character VIN with a check digit, and its model-year codes start at 1980. Older cars carry a shorter serial number in each maker's own format, so decoders and history reports built for modern VINs may return nothing. Check the title against the plate on the car, and use factory records or the marque club instead.
What does numbers matching mean?
It usually means the engine, and sometimes the transmission and rear axle, still carry the codes the car left the factory with. What counts varies by make and model. Read the stamped codes, photograph them, and have a specialist for that model check them before you pay a premium for originality.
Do I need a pre-purchase inspection on a classic car?
Yes, and ideally from someone who knows the model. A general shop can check brakes, leaks and steering. A marque specialist is more likely to spot wrong parts, hidden rust repairs and the faults that model is known for. Ask for a written report with photos.