Nelson Piquet career. Piquet is currently retired and runs several businesses in Brazil. He also manages his sons Nelson Piquet Jr. and Pedro Piquet, who are also professional racing drivers. Piquet was born in Rio de Janeiro, then the capital of Brazil, the son of Estácio Gonçalves Souto Maior, a Brazilian physician. His father moved his family to the new capital, Brasília, in 1960 and became Minister for Health in João Goulart's government (1961–64). Piquet had two brothers, Alexis, and Geraldo, and a sister Genusa. Piquet was the youngest of the children. Piquet started kart racing at the age of 14, but
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