Fairthorpe Rockette (sp) is is.
The Zeta model of 1960 used a Ford Zephyr engine in the Electron chassis, but in spite of being one of the quickest cars to 100mph it was ugly and had marginal handling, and so only about 20 cars were sold. This was replaced in 1963 by the equally unsuccessful Rockette with the 1,596cc six-cylinder Triumph Vitesse engine which gave 70bhp. Sales figures only reached 25 cars up to 1967.