Alternative fuel cars refer to vehicles that run on any fuel other than petroleum fuels, or any engine that is not exclusively dependent on petroleum. Global warming and environmental laws have made alternate power sources high priority for government and car manufacturers all over the globe.

"hybrid" vehicles. They use both electric power and internal combustion. Nonetheless, there are other alternative fuel cars being developed. Right now, the most sought alternative fuel cars are the electric car, the petrol-electric hybrid, and the solar-powered car.

The battery-electric vehicles, or BEVs, are cars that are powered by the chemical juice of batteries. Much are classified as zero emission vehicles, or ZEHs, because no emissions are formed while running. Electrical energy for these cars are obtained from a combo of battery chemistry's arranged intro battery packs. BEVs use mainly lead-acid batteries, NiMH batteries, and lithium-ion batteries.

A hybrid automobile, or the petrol-electric hybrid, implements multiple sources to provide power. This commonly refers to petrol-electric hybrid vehicles, which use gasoline and electric fuel cells for the power used to power internal-combustion engines (ICEs) and electric motors. The worlds first commercially mass-produced and marketed hybrid car was the Toyota Prius. It first appeared on the worldwide market in 2000, and today has surpassed the mark of one million units.

A solar car is an electric vehicle powered by the sun obtained from solar panels on the car. However, solar cars are not a practical form of transportation. Events endorsed by government agencies, such as the US Department of Energy, to increase the development of alternative energy technology such as solar cells and electric transportation. Such challenges are often entered by universities to progress their students engineering and technological skills as well as motor vehicle manufacturers such as GM and Honda.

Lastly, this is also a good alternative homemade biodiesel, this fuel is very popular that is available commercially.