Original: Other events held at the circuit include a round of the MotoGP world championship, the Australian-based V8 Supercar championship in 2005, attracting crowds of over 250,000 spectators, and also the final round of the A1 Grand Prix in 2006\/2007.
Simplified: Other events held at the circuit include a round of the MotoGP world championship, the Australian-based V8 Supercar championship, and also the final round of the A1 Grand Prix in 2006 and 2007.