On this episode of Head 2 Head, Jonny Lieberman pits the new 2013 SRT Viper GTS against its domestic rival, the 2012 Corvette ZR1. It's an all American prizefight as Jonny heads north to Mazda Raceway Laguna Seca to hot lap these two monsters with pro race driver Randy Pobst. And of course, no match up between these two contenders would be complete with out a drag race. It's one for the record books as Jonny and Randy find out which car has the bigger "bollocks."