Ford Mustang (Fox Body)

Start with identity, paperwork and originality. For the Ford Mustang (Fox Body), the strongest cars have a continuous ownership file, VIN and door-tag consistency, a Marti Report where available, original window sticker where possible, and evidence of major service work by recognised Mustang specialists. Original paint, unmodified drivetrain, documented low mileage, factory wheels, Marti Report and — on Cobra / Cobra R / SVO cars — SVT / SVO documentation and matching-VIN paperwork are all material.

5.0-litre pushrod V8 (carburetted through 1985; sequential EFI from 1986) is exceptionally durable and heavily supported by aftermarket; 1993 GT/LX cars carry a revised 205 hp rating vs. the prior 225 hp (Verify: change tied to testing methodology and hypereutectic pistons). SVO 2.3-litre turbo four is quite different — condition of the turbocharger, intercooler plumbing and factory boost controls is decisive. A proper pre-purchase inspection includes cold-start behaviour, compression or leak-down testing where appropriate, factory-tool diagnostic scans on later cars, underbody photography, suspension and chassis-point inspection, brake condition and a road test long enough to expose heat-related faults. Deferred maintenance is almost always more expensive than buying the better-sorted car.

Mustang bodyshells are unibody steel and vulnerable to hidden collision repair and (on earlier cars) corrosion in floors, torque boxes, cowl and rear frame rails. Use a paint-depth gauge, a lift inspection and a specialist familiar with the generation. Documented cosmetic restoration is acceptable; concealed accident or structural repair must be priced severely, and modified cars must be judged on the quality and documentation of the build.

1993 SVT Cobra R (extreme rarity, 107 built), 1993 SVT Cobra hatchback (4,993 built), low-mile 1987–93 LX 5.0 notchbacks, SVO 1985.5–86 cars, 1979 Indy Pace Car, and 'feature' convertibles (1990 '7-Up', 1992 Summertime Yellow, 1993 Vibrant White / Vibrant Red) are the clear collector tiers. Automatic GT cars and later high-mile 5.0s are the everyday pool. Colour, transmission, option packages and limited-build variants move values significantly. Buy the best-documented example in the most desirable specification you can justify rather than a tired example of a rarer derivative that will need years of corrective work.