Why buy a Golf R or Focus RS when you could have an AMG?
Think of Mercedes-AMG, and images of big V8 and V12 engines mounted in colossal, leather-soaked luxury cars come to mind. But the performance car specialist also makes small models like the CLA and GLA, both of which were given the AMG treatment in 2014 and 2015 respectively, supported by 2.0-liter turbocharged four-cylinder engines.
That may not look very impressive on paper, but that little four-cylinder produces a whopping 355 horsepower and 332 lb-ft of torque, making it one of the most powerful production four-cylinder engines ever made. Then in 2017, Mercedes decided to add even more power, bringing the total up to 375 hp.