Mercedes-AMG's innovative M139 engine, combined with electrified tech, creates the most powerful four-cylinder powertrain.

AMG is effectively telling the laws of physics to hold its beer while it turns the wick up to insane levels on a production engine. Kyle Hyatt (he/him/his) hails originally from the Pacific Northwest, ...

It’s called M139, and it is a monster hiding in the cylinders of a 2.0-liter engine. It’s made by Mercedes-AMG, who describes it as being the “world's most powerful four-cylinder engine in series ...

Cars are Andrew's jam, as is strawberry. After spending years as a regular ol' car fanatic, he started working his way through the echelons of the automotive industry, starting out as social-media ...

Two variants of the M139 will be offered, a base model, good for 382 hp and 354 ft lbs of twist, and the “S” model, with the power outputs described above. It’s a significant gain over the ...

Mercedes-AMG recently unveiled the all-new M139 2.0-liter turbocharged engine. It's a complete redesign of the previous-gen M133 four-cylinder motor in the outgoing Mercedes-AMG A45, CLA45, and GLA45.

The elevated level of craftsmanship and ingenuity of the Affalterbach engineers has brought us some of the most sought-after high-performance cars. With a few exceptions, they take standard Mercedes ...

The new portion of the AMG factory in Affalterbach builds only the M139. The pictures with the orange beams are what the older factory floors look like. The new portion of the AMG factory in ...

German tuning firm Posaidon has unleashed it's versions of the Mercedes-AMG A45 S. As expected, it's based on the current A45 S with the M139 turbocharged four-cylinder motor – the most powerful ...

Power-lovers, rejoice: Mercedes-AMG has unveiled its new 2.0-liter turbocharged M139 engine. Handcrafted as part of Mercedes-AMG’s “one man, one engine” production process, it will be the most ...

The old adage that there’s no replacement for displacement is probably a bit of a joke around the Mercedes-AMG plant in Affalterbach, Germany. AMG engineers scoffed at the laws of physics when they ...