We'll give you a hint: It goes in a racing car that helped a certain Argentinean win two F1 championships. Four words: direct injection and desmo. (If you know your history, that last bit should clinch it.)
Did you guess Mercedes-Benz W196 R? Maybe you did, maybe you didn't. Maybe you should school yourself. Regardless, J.M.F. and some Ulhenhaut genius for the Friday win. We were born too late.
[Mercedes-Benz]