Neat idea....................... Probably won't work in the real world. Or will only cost 50,000.00 for the engine. And there's durabilty........... I am skeptical since I can already see that the numbers are skewed. A conventional gas engine only uses 15% of it's fuel............. what a 1927 model T. Modern engines especially when you are talking now are much more efficient than engine designs of even 15 years ago................ Might make a nice toaster though..........