Buy a Hillman Imp on rust and cooling history first. The car can rust almost anywhere, and the all-aluminium engine needs correct antifreeze; an overheated, repeatedly skimmed head can bring its own running problems.
For this November 5, 2026 guide I read Hagerty UK: Hillman Imp buying guide (1963-1976) and Hagerty UK: The Full English, Hillman Imp. The mechanical cautions below come from those pages; the order of checks and the questions for the seller are my practical recommendations. Any price examples in those sources are market snapshots, not a valuation of the car in front of you. So, compare it with recent sales of the same specification and condition.
Hunt for rust before anything else
Hagerty UK bluntly says an Imp can and will rust almost everywhere. It lists the wheelarches, sills, door bottoms, bonnet and the bottom of the rear screen pillars. Underneath, it says to prod the floorpans, spare-wheel well and the areas around the front and rear suspension mounts. Most survivors have been looked after, but that does not excuse skipping the lift. Photograph every repair.
Check the coolant and the head history
The guide says you must check the engine has the correct antifreeze to prevent damage in cold weather and overheating. Overheating can warp the cylinder head and block, which is solved by skimming. Heads skimmed more than once can cause pinking that is often mistaken for poor ignition timing. Ask how many times the head has been skimmed. Look at invoices rather than guesses.
Watch for smoke on start-up
Hagerty UK says blue smoke on start-up usually means new inlet valve seals are needed. It could also point to deeper wear and an expensive rebuild. Start the car from cold with the seller present. Ask a specialist to separate a seal job from worn internals. Do not let a short warm-up hide the first puff.
Test the gearbox and steering
On the drive, gears should select smoothly, and a crunch between first and second points to worn synchromesh. The steering should be light with no play. Knocks or rattles are most likely worn king pins and bushes, the guide says. Note each noise and when it happens. Your inspector can confirm the cause on a lift.
Check the brakes and electrics
Drum brakes work well on the light Imp and should stop the car briskly, according to Hagerty UK. A disc-brake conversion is common and worth having. Electrics are simple but may have been bodged over the years, so try every switch. Interior trim and fabric are very hard to find. Price missing pieces before you agree a number.
Know which variant you want
Values vary by version, from the standard saloon to the Californian coupe, Singer Chamois, Sunbeam Sport and Stiletto, per Hagerty UK. The guide gives UK figures such as around 7,500 pounds for the best standard saloons, which are not U.S. values. Confirm the badge matches the paperwork, because trim swaps are easy. Check the sale history of comparable cars before you make an offer.
Prove the identity before a deposit
Match the chassis number on the Imp to the title, any import papers and the plate on the car before you order a history report. Our VIN verification guide walks through that match, and imported-car report coverage sets expectations for cars that spent years overseas. Older chassis numbers may sit outside modern report databases, so confirm coverage before paying. NMVTIS covers U.S. title history only; it cannot replace foreign records or a physical inspection.
Get the repair scope in writing first
If the suspension mounts or floors are weak, get a welding quote before you discuss price. Look, a seller PDF or a folder of photos is a starting document, not independent proof of condition. Ask the inspector for written findings with local estimates, split into safety work and cosmetic wishes. The NYC consumer-agency used-car guidance tells buyers to have an independent mechanic check the car, and our pre-purchase inspection checklist helps you set the scope.
We are a licensed CARFAX and AutoCheck reseller, not affiliated with CARFAX, AutoCheck or Experian. Guest reports have been about $5.50, member reports about $4.50 and a two-report bundle about $6.75; confirm the price at checkout because it can change. A report can miss unreported work, so keep the inspection appointment even when the history looks quiet.
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