I was reading an article today that said Smokey built a fiero with an adiabatic engine(No gain or loss of heat). Supposedly the engine had 150 hp and the car did something like 5 sec 1/4 miles and got 50 miles to the gallon. I did some googling and found little info on this. Can anyone add to this? Did this thing really exist? Here is a patent number patent #4,862,859 and there was an article in 1983 Popular Science. I havent been able to find the artcle yet.