Research
Pre-purchase checklist

What to check before you hand over money

A collector car is bought on its paperwork, its structure and its numbers, in that order. The checklist below applies to any car of any age; the model histories then cover the faults specific to the one you are looking at.

Before you travel

Stage one
  1. Read the title before you read the advert

    Ask for a photograph of the title, logbook or export certificate with the chassis number legible, and confirm the registered keeper is the person selling the car. Branded, salvage, bonded and lien-encumbered cars all sell legitimately — they are simply worth less, and an outstanding lien has to be paid off through the closing, not on assurance.

    • Registered owner name matches the seller's ID, or there is a signed power of attorney explaining why it does not.
    • Title status read in full: clean, salvage, rebuilt, bonded, flood, odometer-discrepant, or in transit from a lender.
    • For a car outside its home market: the export document, the de-registration certificate, and whatever the destination country needs on arrival.
    • No title at all on a pre-1970s car is common in some states and fatal in others. Establish what your DMV or licensing authority will register before you make an offer.
  2. Verify the chassis number yourself

    Decode the VIN or chassis number independently and check it against the model's build years, engine family, body style and assembly plant. Then order the title history and, where the marque runs an archive, the factory build record.

    • 1981-and-newer VINs are 17 digits and decode free; earlier chassis numbers need a marque registry, a club archive or the factory.
    • Factory records exist for many marques — build sheets, certificates of authenticity, heritage certificates — and are the only way to confirm original colour, engine and options.
    • A title-history report will show branding, mileage readings and past registrations across states. It will not show unreported accident damage.

    Any 1981-or-newer VIN, free:Decode a VIN

  3. Establish what the car has sold for, not what it is listed at

    Price the car against completed sales of the same generation, specification and condition tier within the last eighteen months. Asking prices are an opening position; auction results are a record.

    • Compare like for like: a matching-numbers car, a correct-colour car and a restored shell are three different markets.
    • Note the fees that sat on top of each comparable — buyer's premium at auction, sales tax and registration at home.
    • Watch for a car that has been through several sales in quick succession. That pattern usually has a reason behind it.
  4. Ask for the awkward documents up front

    Request the service invoices with mileage printed on them, the inspection or roadworthiness records, receipts for the expensive scheduled work, and a walk-around video shot to your instructions rather than the seller's showreel.

    • Invoices for the big scheduled items — cambelt, valve clearances, fuel system, brake overhaul — with dates and mileage.
    • A cold start filmed from behind the car, the underside on a lift or ramps, the shut lines, and the areas the model is known to rot.
    • A gap of several years with no paperwork is not proof of neglect, but it is the part of the story you should price.
  5. Price the transaction, not the car

    Add transport, sales tax and registration, agreed-value insurance, any auction premium, and the deferred maintenance visible in the invoices. Importing adds duty, compliance work and a customs broker on top of that.

    • Enclosed transport costs multiples of open transport and is the cheaper option on anything with fresh paint or low ground clearance.
    • Deferred maintenance is part of the purchase price. A due cambelt or a tired clutch is money you are spending whether or not you negotiate it.

    Buying from another market:What importing actually costs

At the car

Stage two
  1. Numbers first, paint second

    Find and photograph every identifying number on the car: chassis plate, chassis stamping, engine number, gearbox number, body tag and any option or colour code. Confirm they agree with each other and with the title.

    • Compare the stamping style, depth and spacing with a known-original example. Restamped and re-plated numbers are a documented practice on valuable models.
    • A replacement engine is not automatically a problem. An undisclosed one is, because matching-numbers cars are priced differently.
    • Photograph the numbers on the day. They are the evidence if the car is later described differently.

    Matching numbers, numbers-matching, correct: What the listing words mean

  2. Structure before cosmetics

    Rust in a structural member is bodyshop work measured in months; rust in a bolt-on panel is a panel. Get under the car and check the places the model corrodes rather than the places that are easy to reach.

    • Floors, sills and rockers, jacking points, inner wings and strut towers, spring hangers, chassis rails and box sections.
    • Water traps: screen surrounds, sunroof and scuttle drains, battery tray, bulkhead seams, boot floor and spare wheel well.
    • A paint-depth gauge and a magnet are inexpensive. Readings several times the factory figure indicate filler or a repaint, both of which are worth understanding before you agree a price.
    • Ripples in the roof and misaligned shut lines are structural news, not cosmetic news.
  3. Insist on a cold start, and be there for it

    Ask the seller not to run the car before you arrive, and arrive early enough to confirm the engine is stone cold. A pre-warmed engine hides hard starting, smoke, a weak battery and top-end noise.

    • Watch the exhaust for the first thirty seconds: blue on start suggests valve stem seals, blue under load suggests bores, white that does not clear suggests coolant.
    • Listen to the top end before oil pressure comes up, and listen again once warm.
    • Note whether it starts on the key or on a trick. A car with a starting procedure has a fault someone has learned to live with.
  4. Drive it further than the end of the road

    Twenty minutes minimum, including a sustained high-speed run, so the coolant and transmission reach operating temperature and stay there. Most faults only appear once everything is hot.

    • Temperature under load, oil pressure when hot at idle, and charging voltage.
    • Gearbox synchromesh on a second-gear downshift, clutch bite point, and whether the car pulls out of gear on the overrun.
    • Braking in a straight line, steering that self-centres, and no vibration that arrives at a particular speed.
    • Drive it on a poor surface as well as a smooth one. Suspension and body noises need something to react to.
  5. Then check the faults specific to this model

    Every model has a small number of expensive, well-documented weak points, and they are the ones worth a torch and ten minutes. Read the model history for the car you are looking at before you go.

    • Know the one or two failures that are worth more than the car's margin before you travel.
    • Know which parts are unobtainable rather than merely expensive. Availability sets the real repair cost.

Before you pay

Stage three
  1. Commission an independent pre-purchase inspection

    Have the car inspected by someone who works on that model, who is paid by you rather than the seller, and who will put a written report with photographs and a costed defect list in your hands. On a five- or six-figure car the fee is a rounding error against what it finds.

    • Brief the inspector on what you want checked: compression or leak-down, a lift inspection, paint readings, and the model's known failure points.
    • Ask for the raw photographs as well as the report.
    • If a seller will not allow an inspection by an inspector of your choosing, that is itself a finding.

    Directory of inspection specialists by location:Find an inspection specialist

  2. Settle the paperwork before the money moves

    Agree in writing what is being sold, by whom, and how the title is released. Any outstanding finance is cleared through the payment, not after it.

    • A lien payoff letter with a per-diem figure, and payment made directly to the lender for that portion.
    • A bill of sale carrying the chassis number, the date, the odometer reading and both parties' details, signed by the registered owner exactly as the title prints their name.
    • Payment to an account in the name on the title, through escrow or a bank transfer you have confirmed by telephone on a number you looked up yourself.
    • No payment to a third-party shipping agent, and no deposit before you or your inspector has seen the car.
  3. Insure and move it as your own car

    Cover has to be bound before the car is driven or loaded, not on arrival. Collector policies are written on an agreed value, which is settled at the outset rather than argued about after a loss.

    • Agreed value, supported by the inspection report, the sale price and photographs taken on the day.
    • Confirm the transporter's cargo cover limit in writing, and that it covers the car at your figure rather than a default.
    • Photograph the car at loading and at delivery, including the underside and all four corners.
    • Enclosed transport for low ground clearance, fresh paint, open bodywork or a value where a stone chip is expensive.

By model

Stage two, in detail

The general checklist stops where a model's own weak points begin. Each history below carries a full list of what to look for and the problems that model is known for, with sources.

  • Acura NSX (NA1/NA2)

    1990–2005

    What to look for

    **Snap-ring transmission (early manual cars).** A narrow band of 1991–early-1992 5-speed cars left the factory with an out-of-tolerance snap-ring groove that can let the ring walk and…

    Read the rest, and the common problems
  • Amphicar 770 (1961–1968)

    1961–1968

    What to look for

    Prioritize a hull and body that are genuinely rust-free — the steel unibody doubles as the boat hull, so corrosion in the floors, sills, seams and lower body is both a value-killer and a…

    Read the rest, and the common problems
  • BMW 2002 (02 Series)

    1968–1976

    What to look for

    Rust is the primary concern: inspect rear shock towers, front floors, frame rails, rocker panels/sills, and upper front fender corners, as structural corrosion is expensive to correct. On…

    Read the rest, and the common problems
  • BMW Isetta (1955–1962)

    1955–1962

    What to look for

    Structural integrity is everything: inspect the floor pan and chassis, battery compartment, wheel wells/arches and body folds for corrosion, since repairs can exceed a driver-grade car's…

    Read the rest, and the common problems
  • BMW M3 (E30)

    1986–1991

    What to look for

    **Provenance over everything.** The single best predictor of a good E30 M3 is a thick file of service history. These were motorsport cars; many were tracked or driven hard. Receipts from a…

    Read the rest, and the common problems
  • Chevrolet Corvette (C2 Sting Ray)

    1963–1967

    What to look for

    - **1963 split-window authenticity**: the divided rear window and functional hood vents are '63-only; verify the car is genuine, not a later coupe modified. - **Numbers-matching…

    Read the rest, and the common problems
  • Citroën DS (1955–1975)

    1955–1975

    What to look for

    Confirm the self-levelling suspension rises and falls smoothly from each corner and that the hydraulic pump ticks only roughly every 30 seconds at idle (frequent ticking suggests leaks)…

    Read the rest, and the common problems
  • Datsun 240Z (S30)

    1969–1973

    What to look for

    **Rust is the number-one issue — assume it until proven otherwise.** These unibody cars rot in well-known places: the floor pans, frame rails, rocker/sill panels, the battery tray area…

    Read the rest, and the common problems
  • DeLorean DMC-12 (1981–1983)

    1981–1983

    What to look for

    Inspect the steel backbone chassis carefully: the original frame was epoxy-coated mild steel, and where that coating has cracked, rust can form despite the rust-proof stainless skin. Check…

    Read the rest, and the common problems
  • Ferrari 308 GTB/GTS

    1975–1985

    What to look for

    **The belt service is the whole ballgame.** The 308’s timing belts must be changed on schedule; a snapped belt on these interference engines means serious internal damage. Demand documented…

    Read the rest, and the common problems
  • Ferrari Testarossa (1984–1991)

    1984–1991

    What to look for

    Verify VIN and authenticity, and insist on a full documented service history — especially proof of recent cam-belt service. Early cars: confirm genuine monospecchio mirror and monodado…

    Read the rest, and the common problems
  • Ford Bronco (1966–1977 (First Generation))

    1966–1977

    What to look for

    Prioritize a rust-free frame, floors, rockers and body seams over cosmetics—rust is the make-or-break issue. Check for cut or flared fenders, homemade lifts and hacked wiring, which are…

    Read the rest, and the common problems
  • Ford Mustang (1965–1968 (First Generation))

    1965–1968

    What to look for

    Rust is the dominant concern: inspect floorpans, frame rails, torque boxes, lower doors, trunk floor, the cowl/vent area below the windshield, the rear-window channel, under the battery…

    Read the rest, and the common problems
  • Jaguar E-Type (Series 1)

    1961–1968

    What to look for

    Prioritise originality and provenance: matching chassis/engine numbers, correct body-change features for the claimed date (flat floor, external latches, welded louvres on the earliest cars)…

    Read the rest, and the common problems
  • Lamborghini Countach (1974–1990)

    1974–1990

    What to look for

    Provenance and matching-numbers documentation are critical, especially for LP400 Periscopio cars where value hinges on originality. Verify chassis/engine numbers against registries (e.g…

    Read the rest, and the common problems
  • Mazda RX-7 (FD (FD3S))

    1992–2002

    What to look for

    Prioritize a documented compression test using rotary-specific equipment (healthy chambers near ~100 psi; readings below ~85 psi flag worn apex/side seals and a likely rebuild). Seek full…

    Read the rest, and the common problems
  • Mercedes-Benz SL (W113 'Pagoda')

    1963–1971

    What to look for

    Prioritise a rust-free, honest body: check unibody box sections, floors, sills, trunk/spare-well and wheel arches, as proper metalwork is very expensive. Confirm matching numbers and a…

    Read the rest, and the common problems
  • Nissan Skyline GT-R (R34 (BNR34))

    1999–2002

    What to look for

    Verify matching numbers and documented service history, especially on the RB26 (timing belt replacement records, no signs of a blown or hastily rebuilt engine). Inspect carefully for rust…

    Read the rest, and the common problems
  • Porsche 356 (1948–1965)

    1948–1965

    What to look for

    Confirm matching-numbers engine/transmission and correct series-specific engine (pushrod vs. the rare and hugely valuable four-cam Carrera). Verify body-style authenticity—Speedster…

    Read the rest, and the common problems
  • Porsche 911 (964)

    1989–1994

    What to look for

    **Buy the car, not the spec.** A sorted, well-documented C4 beats a tired "better-spec" C2 every time. Service history and receipts from a known Porsche specialist matter enormously on…

    Read the rest, and the common problems
  • Porsche 911 (993)

    1994–1998

    What to look for

    **Documentation and specialist history matter enormously.** A sorted, fully documented car beats a "better-spec" neglected one. Receipts from a recognized air-cooled Porsche specialist are…

    Read the rest, and the common problems
  • Porsche 911 Turbo (930)

    1975–1989

    What to look for

    Documented service history and matching-numbers engine/gearbox; the 3.3 top-end and intercooler condition; evidence of proper turbo and boost-system health. Confirm originality of…

    Read the rest, and the common problems
  • Shelby Cobra (1962–1967)

    1962–1967

    What to look for

    Everything rests on a real, documented CSX chassis number verified against the SAAC World Registry of Cobras and GT40s (and, ideally, a car with continuous known history and correct-type…

    Read the rest, and the common problems
  • Toyota Land Cruiser (FJ40 (40 Series))

    1960–1984

    What to look for

    Rust is the number-one issue: inspect floors and footwells, rear quarters and wheel arches, tailgate, door bottoms, windscreen frame, body mounts and especially the frame and rear…

    Read the rest, and the common problems
  • Toyota Supra (A80 (Mk4))

    1993–2002

    What to look for

    **Originality is the whole game.** Because so many were modified, a genuinely stock, well-documented Turbo 6-speed is the most valuable configuration — and the easiest thing to get wrong…

    Read the rest, and the common problems

Alongside this

This checklist is general guidance for buyers. It is not a substitute for an independent pre-purchase inspection of the specific car, or for advice from a registration or customs authority.