Everyone knows that the first and foremost trick in the hypermiler's book is a light right foot. It's simple, don't put the pedal to the metal and you will save on gas. Driving a gas-sipper helps a lot too. But what if you like the sound of a racing engine? The Soundracer V8 is the perfect car accessory for you. You can drive like a feather-footed granny, but sound like Michael Andretti!