Few debates ignite a car enthusiast’s passion quite like the question of which German performance brand reigns supreme. Audi RS, BMW M, and Mercedes-AMG each represent a distinct vision of what a fast car should be — and understanding those visions makes choosing between them far more interesting than simply comparing horsepower figures. We’ve already explored the broader differences between Audi, BMW, and Mercedes-Benz in their philosophy and approach to building cars. Now it’s time to go deeper into their performance arms: Audi’s RS line via its Audi Sport department, BMW’s M cars, and the Mercedes-AMG brand.
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