In addition to dual turbochargers you see stacked in series, this C13 ACERT engine (like the C11) receives a new cross-flow head, larger oil sump, higher compression ratio, and rotating components ...

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 ...