The BMW M3 is a high-performance sports car that was first introduced in 1986. It is based on the BMW 3 Series, but it has a more powerful engine, a stiffer suspension, and a more aerodynamic body. The M3 has been available in a variety of body styles, including a sedan, a coupe, and a convertible. The current generation of the M3 was introduced in 2014, and it is powered by a 3.0-liter turbocharged inline-six engine that produces 425 horsepower. The M3 is a popular choice for track days and weekend getaways, and it is also a popular choice for celebrities and athletes.