GM has set 2010 as their goal for the release of a production version of the Chevrolet Volt electric concept car. The concept car has a range of 640 miles on a single tank of gas. The main difference between this car and the Toyota Prius or Honda Civic hybrids is that the gas motor in the Volt does not directly drive the wheels. Instead, the gas motor simply powers the electric motors. GM’s main goal is to make the car run for 40 miles on pure electric power. This means that most commuters can go a whole day without using a single gallon of gas. The car also has plug in capabilities, so the batteries can be charged at night. A running prototype of the car is expected by the end of this year.