• COMMERCIAL IMAGE - Team Hot Wheels green driver Greg Tracy and yellow driver Tanner Foust set Guinness World Records Title by successfully racing through a 60-foot-tall double vertical loop at the X Games Los Angeles on Saturday June 30, 2012 in Los Angeles. (Pool Photo by Max Simbron/Invision for Mattel/AP Images)

  • COMMERCIAL IMAGE - Team Hot Wheels green driver Greg Tracy and yellow driver Tanner Foust set Guinness World Records Title by successfully racing through a 60-foot-tall double vertical loop at the X Games Los Angeles on Saturday June 30, 2012 in Los Angeles. (Photo by Kent Horner/Invision for Mattel/AP Images)
  • COMMERCIAL IMAGE - Team Hot Wheels green driver Greg Tracy and yellow driver Tanner Foust celebrate after setting a Guinness World Records Title by successfully racing through a 60-foot-tall double vertical loop at the X Games Los Angeles on Saturday June 30, 2012 in Los Angeles. (Photo by Kent Horner/Invision for Mattel/AP Images)