Idea for a Combustion engine

Bioethanol is a great idea but we all know it has little use.
Of course bioethanol can superheat blaze burners but superheated blaze burners also have little use in the create mod.
I think it would be a great idea making an engine that works on bioethanol and therefore giving a reason to make a bioethanol farm in your Minecraft worlds. I'm would happy to hear you toughts. :-)

Don't know if it existed back in august but there is the steam engine which does exactly what you want.