Autódromo Internacional Nelson Piquet is a race course in Brasília, the capital of Brazil. With 5.475 km of length, the name of the circuit was originally Autódromo de Brasília at the establishment in 1974, but later changed to the current name. The circuit brought a non-championship Formula One race to Brasília at the end of the 1974 season. From 1995, the circuit was leased to NZ Empreendimentos, one of the Nelson Piquet's companies, by the government of the Brazilian Federal District. But, in 2006, the Federal District regained the control to manage the circuit due to NZ Empreendimentos' lack of attention to the track's management. Source: Wikipedia