Tyre Diameter: R15 | AC Cobra MkIV 1983 to 1989

AC's revised Cobra, produced from 1983 to 1989. Until, 1987 the MkIV was fitted with 15 inch wheels carrying 225/65VR15 tyres at the front, and 275/55VR15 at the rear. Post 1987 cars were fitted with 16 inch wheels, the tyres were 225/50VR16 fronts and 255/50VR16 rears.

The AC Cobra was the result of Texan racing driver Carroll Shelby slotting a Ford V8 into an AC Ace bodyshell and beefing up the chassis in an attempt to tame the power, although it was still a fearsome car to drive. The first 75 cars were known as the AC 260 because they featured a 260 cubic-inch (4261cc) Ford V8; a 289 cubic-inch (4727cc) V8 was fitted after this. These first cars were known as the MkI but in early 1963 the MkII arrived with rack-and-pinion steering in place of the previous cam-and-peg set-up.

At first available only in the US, from 1964 the AC Cobra was offered in the UK then in 1965 came the AC Cobra 427, known as the Series III and the fastest model yet. With a 427 cubic-inch (6997cc) V8 there was a stronger chassis and coil suspension; production lasted until 1967. Later would come a string of continuation cars including the MkIV, the 212 S/C, the Superblower and the CRS (Carbon Road Series).