1974 For the 1974 season Hesketh Racing built a car, inspired by the March, called the Hesketh 308, but an accompanying V12 engine never materialised.
1974 Para a tempada 1974 Hesketh construíu un coche, inspirado no March, chamado Hesketh 308, pero o motor V12 que o acompañaba nunca se materializou.