Alternative fuels include biodiesel and hydrogen. Alternative fuels are important because they could eventually provide us with a cheaper, cleaner, and more abundant source of fuel. Check out these great alternative fuel articles from HowStuffWorks.
Can a car run on nuclear power?
The search for alternative fuel is on. Could a pocket-sized version of a nuclear power plant make your car run 5,000 miles (8,047 kilometers) between fill-ups?