Holden Commodore

Come up with a list of high MPG cars and we're willing to bet that a car powered by a Chevrolet LS3, 6.2-liter, 425-horsepower V8 wouldn't be present. However, just such a car has won one of the categories in the Fleet World MPG Marathon, bettering its quoted MPG figures by 50 percent. The car in question is the Vauxhall VXR8, from General Motors' U.K branch. You might be more familiar with the car as the old 2010 Pontiac G8 GXP, and the car was originally developed by GM's Australian arm Holden as the Commodore HSV E3 GTS. Equipped with an LS-series V8, performance is its strongest suit, and...