In 2005, Gore and John Fish partnered with Derrick Walker, owner of Walker Racing, to form Gore Fish Walker (GFW) LLC. This entity operated the Team Australia brand in the Champ Car World Series, with Will Power serving as the primary driver. The team was supported by Gore's financial services company, Wright Patton Shakespeare (WPS), and the Aussie Vineyards brand. Under this banner, Power achieved a historic victory at the 2007 Vegas Grand Prix, becoming the first Australian to win a Champ Car race.
Beyond open-wheel racing, Gore supported Marcos Ambrose during his transition to North American stock car racing, sponsoring his debut seasons in the NASCAR Craftsman Truck Series (2006) and Busch Series (2007). In the 2006 Champ Car Atlantic Championship, Team Australia entered Simon Pagenaud, who won the drivers' championship as a rookie and earned a US$2 million scholarship.
From 2004 to 2007, Gore operated his own V8 Supercars squad, WPS Racing. The team's tenure was marked by outspoken protests, such as the 2004 incident where cars carried "No Money from Ford" logos after a lack of manufacturer support. Following a disastrous 2004 Sandown 500 where the team's cars caused multiple safety car periods, Gore issued a public "savage spray," criticizing lead driver David Besnard and the team's performance. Despite the internal friction, Besnard secured the team's first race win at Symmons Plains shortly after. Other drivers for the squad included Mark Noske, Craig Baird, Jason Bargwanna, and Alex Yoong.
In late 2007, Gore suffered a helicopter accident resulting in inner ear damage, which prevented him from attending loud racing environments. In 2008, he underwent emergency surgery for a perforated bowel while in Britain. Following these health scares, Gore sold his V8 Supercar licenses and WPS Racing ceased operations in February 2008. While media reports at the time claimed he had retired to spend time with his family, Gore initially denied he was quitting, though he eventually moved away from active involvement in the sport.
In November 2020, Gore was sentenced to five years in prison with a non-parole period of two years. He was found guilty in a Brisbane court on six counts of fraud totaling $345,000. Gore's brother, Dev Gore, is an American professional racing driver who has competed in the DTM.
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