Nelson Piquet prized as a good player but not thought sufficiently exciting for the sport, which led him to devote his career to motor racing. Piquet dropped out of a University two years into an engineering course in 1974. He was subsequently employed in a garage to finance his career, since he had no financial support from his family Upon returning to Brazil, Piquet and three friends brought a 20 hp cart and participated in Brazilian go-karting (1971 and 1972 national champion) and in the local Formula Super Vee 1976 championship, on the advice of Emerson Fittipaldi, the first Brazilian Formula One
David Walker (racing driver) David Walker (racing driver) David Walker (born 10 June 1941 in Sydney) is an Australian former racing driver who drove for Lotus in the 1971 and 1972 Formula One World Championships. Walker had some international racing experience early in his career in the Australian rounds of the Tasman series in 1964-65 on challenging tracks like Longford and Sandown at a time when most Australian National 2.5 drives were near world class and he also drove a Lotus 70 in the 1971 Australian rounds. During the 1960s Walker's racing career faltered (he was the 1969 British Formula Ford Champion and finished