Although the Dodge Challenger finished third in the 2017 muscle car sales race, the combination of the Challenger, Charger and Viper make Dodge the leader in American rear-wheel drive sales – comfortably outselling Ford and Chevrolet, reports Torque News. " Of course, some people will dispute the fact that the Chevy SS and the Dodge Charger are muscle cars because they have four doors – these large cars share all of the muscle car attributes while also having a far more functional back seat. That is why the automakers may refer to them as four-door muscle cars and in my opinion, the title is fitting. Along the same lines, some people may insist that a 4-cylinder Mustang or a V6 Challenger might not be a muscle car, but do we classify the classic muscle cars with a smaller engine in some other group? No, we don’t…they’re all muscle cars regardless of the engine size as far as the industry is concerned. "In any case, when we add up the sales numbers for the performance-oriented, rear-wheel-drive-based vehicles sold in the US, Dodge dominates the class with the Challenger, the Charger and the now-gone Viper."