Walt Disney Studios has unveiled video clip: 'carmac' for Cars 2 (2011). When star racecar Lighting McQueen (voice of Owen Wilson) and the incomparable tow truck Mater (voice of Larry the Cable Guy) head overseas to compete in the first-ever World Grand Prix, Mater gets caught up in an intriguing adventure of his own: international espionage. Watch video clip: 'carmac' now!