At the end of 1996, he drove one race in the International Touring Car Championship at Interlagos for Alfa Romeo, as all manufacturers had one local driver to improve interest among local spectators. He led the second race for a while, eventually finishing in 2nd. Failing to raise a full Champ Car budget for 2002, Wilson moved to Australia where he joined the Ford V8 Supercars team Briggs Motor Sport. In his second outing in a V8 Supercar, Wilson qualified fifth at the Clipsal 500 in Adelaide. Racing for Dick Johnson Racing in 2003, he took his first podium finish in the championship at the final round of the year.