M means "Motorsport" - the grueling arena of endurance racing that is the lifeblood of BMW M.  
Power, precision, and passion are the essence of the M3 coupe.  With a 3.2-liter, six cylinder engine that produces 333 horsepower, enough to launch from 0 to 60 mph in a staggering 4.8 seconds, the M3 coupe is starting at $45,900.  It's muscular, distinctive design and astonishing performance leaves no doubt that the M3 coupe was created by people with a passion for driving. ,
Power is the root of all driving pleasure.  That's why the M roadster, starting at $45,900, has 315 horsepower and reaches 0-60 mph in 5 seconds.  So, come and savor the performance and power that is the M roadster.
Nowhere in reality is there an open-air experience like the M3 convertible.  Starting at $53,900, with 333 horsepower, six torque-filled gears, monstrous brakes, and a fully-lined soft top, it's as if you willed it into existence.
The M5's 5-liter, 394 horsepower V-8 is the most powerful and sophisticated road-going M engine ever.  It performed a fastest-in-class 4.8 second launch from 0-60 and a remarkable 13.3 seconds in the quarter-mile.  Starting at $69,900, the M5 displays unmatched extreme performance with total comfort.

 

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