First, the bottom line Everyone's talking about environmentally-friendly vehicles. Most of us, especially those who follow the automotive scene, are familiar with electric cars, gas-electric hybrids, and natural gas cars. All are friendly to Mother Earth, but they all have limitations.
Nobody seems to want an electric car.
Natural gas cars can only be fueled at select locations. The Toyota Prius hybrid is probably the least inconvenient, though it's expensive. If you want to be environmentally friendly, you have to be willing to put up with some inconvenience. The Sentra CA is only available in California, but I think it's important that everyone know about this very important car. So far as I can tell, only about 17 people have heard of it, and 12 of them work for Nissan.