Electric 

These are defined as vehicles that utilize chemical energy stored in battery packs. An electrical motor instead of an regular combustible engine. Everyday many people are becoming more interested in these cars as commuters.

The Hybrid: The Hybrid is defined as the hybrid electric vehicle (HEV). This is a vehicle that uses two or more distinct power sources to propel the vehicle. Common power sources include: regular gas and electric battery. With a hybrid you still use gasoline, but much less than a standard vehicle. Rumor has it the next to come is a hybrid flex vehicle. This automobile would use gasohol and electricity to fuel the vehicle.