Environmentally Safe Automobiles "Green Cars"

Auto makers are working hard to produce cars that cause less pollution. Their long-term aim is to make zero-emisson vehicles (ZEV) to comply with new state laws. The car companies can reach their  goal, such as designing cars that burn less fueli tuning engines so that they burn cleaner fuels and producing electric cars that dont burn any fuel. However, none of these solutions is perfect and all of them are expensive. Although everyone agrees that there are no simple solutionsi more and more states are adopting stricter antipollution laws.