Hijack...

Sulfur emissions are a problem with diesel. Always have been and always will be because of the fuel and technology used. Personally I'd take an ethanol car over diesel any day. It has it's commercial applications, thats about it.

Variable valve timing in engines, hybrid engine systems and focused engineering can overcome mileage issues in the next 15 years. After that, we have to say good bye to the aging internal combustion engine.

and... cool video.