The BMW M3 is a high-performance version of the BMW 3 Series, developed by BMW's in-house motorsport division, BMW M. M3 models have been derived from the E30, E36, E46, E90/E92/E93, and F30 3-series.
The initial model was a coupe body style. At times the M3 has also been available in saloon and convertible body styles. Due to the 4 Series coupe and convertible models no longer being part of the 3 Series range from 2015,  the F82/F83 coupe and convertible models are now called the M4. The M3 name remains in use solely for the saloon version.
Upgrades over the "standard" 3 Series automobiles include more powerful and responsive engines, improved handling/suspension/braking systems, aerodynamic body enhancements, lightweight components, and interior/exterior accents with the tri-colour "M" (Motorsport) emblem.