Of course, over here to everyone but British car owners it is...
From front to back: Hood, Top, Trunk
Not that that answers the question!
Of course, the engine is in the engine compartment which is between the boot/trunk and the passenger compartment which is covered by the top/hood, with the hood/bonnet at the front. Of course the boot/trunk and the bonnet/hood are bordered by the wings/fenders and the passenger compartment is bordered by the sills/rocker panels, and the tyres/tires are at all four corners.
So There!