Nice motor mate! Presenting Ike Eichelberger and his home built Keil-Porsche special at Virginia International Raceway in 1969. The Keil (German for “Wedge”) was actually very much more sophisticated than it looked. And let’s be honest. It kind of had to be! Read on.......

This chap is Archie Butterworth. Archie was something of an eccentric 'mad inventor'. An instinctive and intuitive engineer who’d found himself employment at the Royal Enfield weapons factory at the end of WW2. In his spare time Archie had designed a Grand Prix car, as you do. Completely! Engine, gearbox, chassis, the lot.

Piers Courage on final approach in a Frank Williams entered De Tomaso Formula 2 car at the Nurburgring in 1969.