Car and Driver 10Best tested: Ferrari Testarossa, 173 mph Top-selling cars: Imports and domestics chosen by marque, not by place of manufacture. Price cap: $35,000 Fastest car tested: 750iL "V12", 158 mph Top-selling cars: Eliminated half domestic/half import rule as impractical. Price cap: $35,000 Fastest car tested: Chevrolet Corvette "ZR-1", 175 mph Top-selling cars: New rule: No more than two places per marque. Price cap: $35,000 Fastest car tested: Chevrolet Corvette "ZR-1", 176 mph Top-selling cars: Price cap: $40,000 Fastest car tested: Ferrari F40, 197 mph Top-selling cars: Price cap: $40,000 Fastest car tested: Lamborghini Diablo, 204 mph Top-selling cars: Institution of the 2.5x
V12 engine powered car in the Brooklands short and long handicap races. The engine displaced , with bore and stroke of 80 x 150 mm. An aluminum crankcase carried two blocks of three cylinders each along each side, with a 60 degree included angle. The cylinders were of iron, with integral cylinder heads with L-shaped combustion chambers. Inlet and exhaust valves were operated by a central camshaft in the V. Valve clearance was set by grinding the relevant parts, the engine lacking any easy means of adjustment. This pointed to Coatalen's ultimate aim of using the new V12 as an aero engine,