On a steamy March afternoon, former NASCAR Nextel Cup champ Kurt Busch sits in a stock car at Lowe's Motor Speedway in Charlotte, North Carolina, revving his engine in anticipation. The question hangs in the air: Which of three nearby celebrities, decked out in racing jumpsuits, will be the first to gulp back fear, strap into the makeshift passenger seat, and join Busch in a three-lap, cement-wall-kissing 190 mph run around the famed 1.5-mile track?
Laird Hamilton, best known for riding 70-foot waves, finally stands and pulls a helmet over his long blond locks. "Oh, sure," Hamilton calls to NFL legend John Elway and tennis champ Serena Williams with a grin. "Get the stupid surfer to do it."
Various-grade celebrities have already attempted dancing and skating on reality TV shows, and now a fresh slate of would-be winners will turn to driving, mashing the gas for an ABC series set to air this summer.A dozen stars have signed on for the Fast Cars & Superstars—Gillette Young Guns Celebrity Race, with would-be leadfoots including athletes (2007 Australian Open tennis champion Serena Williams, bullrider Ty Murray, WWE champ John Cena) and performers (singer Jewel, actors William Shatner and