That V12 car is awesome. Anyone can shove a V12 into a car, but an actual Merlin(!), and to have the aviation dash, that rocks.
My favorite WWII aircraft is the Vought F4U-4 Corsair. Though I don't think anyone will be installing a Pratt R2800-18W into a car (or truck) anytime soon. Perhaps as a kid I saw a tractor pull truck with one of these, but haven't seen anything else in a while.
One heck of an engine stand: