Autódromo Internacional Nelson Piquet (Brasília) one day prior to the cancellation. Following the announcement, construction work was halted with the circuit left in its half-finished state. The district governor initially committed to having the work complete by 26 April, so the circuit could host its scheduled round of the Stock Car Brasil series, however the event has now been rescheduled to September due to delays with construction works. Autódromo Internacional Nelson Piquet (Brasília) Autódromo Internacional Nelson Piquet is a racing circuit in Brasília, the capital of Brazil. It is 5.476 km in length and hosts a variety of national-level series including Stock Car Brasil, Formula
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