Ferrari F40

Start with identity, paperwork and originality. For the Ferrari F40, the strongest cars have a continuous ownership file, matching chassis and engine details where applicable, original manuals, invoices and evidence that major service work has been carried out by recognised specialists. Original panels, original paint, red book certification, books/tools, fuel-cell history and known ownership chain define the upper market.

The twin-turbo Tipo F120A V8 is durable when maintained, but fuel cells, cam belts, turbo health and age-related hoses are central ownership issues. A proper pre-purchase inspection should include cold start behaviour, leak-down or compression testing where appropriate, diagnostic scans on modern cars, underbody photography, suspension pick-up point checks, brake condition and a road test long enough to reveal heat-related faults. Deferred maintenance is usually more expensive than buying the better car.

Use a paint-depth gauge, lift access and a specialist who knows the model's factory seams. Collector value is heavily affected by structural repairs, poor paintwork, corrosion, incorrect panels and missing factory trim. Cosmetic restoration can be acceptable when documented; hidden accident repair should be priced severely.

Collectors prize early non-cat/non-adjust cars, low mileage, Classiche certification, original paint and complete accessories; restoration quality must be scrutinised carefully. Specification, colour, transmission and limited-production variants can move values dramatically. Buy the best-documented car in the most desirable specification you can justify, rather than a tired example of a rarer derivative that will require years of corrective work.