Mercedes-Benz was always known for its bruising V8 engines, though in recent years it has been wowing audiences with its power dense four-pots.

AMG has been focusing mainly on their M156, a 6.2-liter naturally aspirated V8, and the M157, a 5.5-liter V8 BiTurbo. Yet when they designed their very first four-cylinder engine, none of these ...

Stories about M133 - June 20th 2025. Banging A 45 AMG First Person Driving Footage. 19 Feb 2014, 19:14 UTC · By: Alex Oagana / Most video car reviews out there are pretty standard when it comes ...

Unlike the V-8 and V-12 engines by AMG, the M133 is not built at AMG headquarters in Affalterbach. Instead, it will be manufactured in Mercedes’ Kölleda, Germany, engine plant some 200 miles north.

It's 416, or 40 more than stumped up by the M133 engine it replaces. That means the M139 supplants the M133 as the world's most powerful series-produced four-banger.