When buying a used Toyota Supra, pay attention to which generation the particular Supra is a part of and know what to expect from each of these generations. In particular, watch out for Mark III Supras, which are known to have head gasket problems.
Toyota classifies the Toyota Supra into four distinct generations: the Mark I, constructed between the years of 1978 and 1981; the Mark II, produced from 1981 to 1986; the Mark III, constructed between the years of 1986 and 1992; and the Mark IV, produced from 1993 to 2002.
Problems common to Toyota Supras include failed emissions tests, incorrect shifting at high mileage and defective starters. When looking for a used Toyota Supra, make sure that the vehicle in question has passed emissions and shifts properly. Additionally, ask about the last time the previous owner replaced the coolant and thermostat of the vehicle. Toyota Supra owners on RepairPal.com commonly report a need to replace these two components every 60,000 miles.
The Mark IV Supra features a six-speed manual transmission and a twin-turbocharged 3.0-liter 24-valve engine. When purchasing a Mark IV turbo Supra, be aware that owners of these vehicles tend to modify them extensively, affecting the vehicle's value.