consumption, eliminating mixing oil with fuel, meeting global smog emissions regulations, improved torque and power at all rpms, better power per unit weight, over other two-stroke and 4 stroke units. Participation in F1 Grand Prix racing Van Rooyen participated in two Formula One World Championship Grands Prix, debuting on 1 January 1968. He retired from both, scoring no championship points. Personal BvR, posing in front of his motorsport trophies. Racing record Complete Formula One World Championship results (key) Complete British Saloon Car Championship results (key) (Races in bold indicate pole position; races in italics indicate fastest lap.) † Events with 2 races staged for the different classes. Complete Bathurst 1000 results References Sources Photos of BvR and various racing cars Profile at www.grandprix.com Book publication: Kyalami a reflection on the history pp 396-400 Springbok Series by Greg Mills Book on An Era of Sports and Saloon Car Racing in Southern Africa compendium of articles by SA Journalists The CITS - Crankcase Independent Two-Stroke Engine South African racing drivers South African Formula One drivers Australian Touring Car Championship drivers Sportspeople from Johannesburg 1939 births Living people