Governor Schwarzenegger visits Xzibit, Mad Mike and the entire "Pimp My Ride" crew at G.A.S. (Galpin Auto Sports), as they take aim on a '65 Chevy Impala, and give it a one of a kind ecological alteration. Ultimately proving that power and preservation can co-exist thanks to partners at Galpin, Imperium Renewables, General Motors and others, the Impala gets an 800 horsepower diesel engine that will run on biodiesel, turning it into one extraordinary clean machine!