Nothing sounds like an AMG-tuned V8. The company has been tweaking Mercedes-Benz engines since the 1970s, when it was ripping the German automaker’s engines apart, including replacing cylinder heads and building custom valvetrains. Mercedes eventually bought the tuner and established AMG as a performance-focused sub-brand. The division developed high-performance versions of everything from the C-Class to the S-Class to the ML and even the oddly shaped R-Class crossovers.