The M139 is a turbocharged straight-four engine produced by Mercedes-Benz. It serves as the successor to the M133 engine. It is the first AMG four-cylinder engine to feature two distinct output levels

The Mercedes-Benz GLC is a compact luxury crossover SUV introduced in 2015 for the 2016 model year that replaced the GLK-Class. According to Mercedes-Benz, it is the SUV equivalent to the C-Class.