Well there is nothing wrong with trying is there? And perhaps engineering as well as R&D for various experimental technologies could do some good for production-feasible technologies in the future for companies which mess around with this stuff. I say the more they try, the better they will become in the future. Thats why I love concepts. When you see a good concept, you know that company is trying.mgrovernut said:5.) Don't take on the big boys at things like Hydrogen engines when designing a decent internal combustion engine is already difficult enough.