two_bears - I'm way over my head, here. I got this information from a radio show the other night. I'll admit I was half listening but I was sure they were talking hydrogen. Maybe not. In fact, they were saying, GM has reconceptualized the car, stating that it was now a power plant at night and that the excess power could be sold.

My daughter tells me that the hydogen fuel cell is not the answer in as much as the parts required also produce a great deal of pollution.