sentences:  In 2005 the Confederation of Australian Motor Sport launched the return of the Australian GT Championship which uses older GT2 and GT3 cars with balanced performance.the Australian GT Championship allows GT3 cars and will allow older GT cars as well.Starting from 2007, the GT3 Brasil Championship has been held in Brazil, also organized by SRO, with several veteran drivers racing in some events, such as former Formula One champions Emerson Fittipaldi and Nelson Piquet and former Brazilian Stock Car champions Chico Serra and Alexandre Negrão, who also was the first series champion.