Why aren't we making 850hp/liter? Hummm 5600 hp Duramax.
http://www.autobloggreen.com/2007/02/12/no-more-engine-whine-could-formula-1-go-diesel/
http://www.autobloggreen.com/2007/02/12/no-more-engine-whine-could-formula-1-go-diesel/