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For BMW, that would be the M Division - or BMW M, for short. "M" stands for Motorsport.
Though the division started as an arm of BMW's racing operation, it eventually became the means by which BMW would beef up a select few of its passenger cars.
BMW fans know that a BMW M car is something special - endowed with more-powerful engines, track-inspired chassis, and all manner of exterior and interior enhancements designed to make the cars meaner, like a controlled hurricane that tears through avenues and highways.
An M car always looks like it's ready to peel back some asphalt under its wide, beefy tires.
BMW
But, the M division employs additional measures if, for you, "fast" is never fast enough. There's the Competition Package - designed to make an already insane M car downright bananas.
Think of Tesla's "Insane Mode" button, except, an entire car that's permanently set on "loco."
BMW has a long history of amping up its already amped-up cars. See the M4 GTS coupe:
BMW