The AMG C63 used to be powered by the M156 6.2-litre naturally aspirated V8. That unit typically produced 451-487 horsepower. The engine in the current C63 has a smaller displacement, but has 510 horsepower thanks to the M178’s unique twin turbo charger setup.
So, objectively, there’s more power and better efficiency. But which engine sounded better? A recent Jalapnik article brought this debate up, but we thought we’d give you a direct comparison. Judge for yourself. Videos below are courtesy of Automann-TV’s YouTube Channel.