That makes it the most powerful turbo four-cylinder engine currently in a production car! The M139 engine is used the Mercedes GLA45, CLA45, and A45 vehicles. 416 horsepower at 6,750 RPM and 369 lb-ft ...
Mercedes-Benz. Easily one of the most beloved luxury car manufacturers. There has always been a level of sophistication that comes with the German automaker's name. Perhaps it's related to the ...