The chassis used double wishbone suspension at both ends, and disc brakes at the front (with drums at the back.

)[1] The car was significantly lighter than mainstream competitors such as the MG MGB GT, and offered correspondingly class leading performance and fuel economy.

[5] The 1968 S2 was built with the longer (90 inch) wheelbase chassis, introduced on the Tuscan V8 but which TVR had now standardized to address complaints about difficulty of ingress.

Also very significant was the fact that the body was bolted (rather than bonded) to the chassis, meaning that it could be easily removed for repairs.

Finally, the S4 cars were an interim model that used the TVR M Series chassis with the Vixen body shell.

[5] The 1300 model arrived in late 1971 and was built in an attempt to fill an "economy" market segment for sports cars.

[6] Not to be confused with the later 2500M, the 2500 (marketed as the Vixen 2500 in the United States) was built between 1971 and 1972, and was designed to take advantage of the fact that the Triumph 2.5L inline-six engine had already been certified for US emissions standards (although only in 105 bhp form.)