Or engines that brands made famous. It's hard to tell sometimes.

The five-cylinder engine is uncommon relative to the ubiquitous four-cylinder, six-cylinder, or eight-cylinder variants. As an odd-number engine, it certainly is in a class of just three such engines.

Truck engines don't usually get as much fanfare as those of the big luxury coupes. Perhaps it's because they're built for grit over glamour. But take a closer look, and you'll find a few that earned ...