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 and E90/E92/E93 3-series, and sold with coup, saloon and convertible body styles. Upgrades over the 'standard' 3-Series automobiles include more powerful and responsive engines, improved handling/suspension/braking systems, aerodynamic body enhancements, and interior/exterior accents with the tri-colour 'M' (Motorsport) emblem. Over the years the M3 and M5 have become the benchmark vehicle against which most sport sedans in its class are compared despite fierce competition from Mercedes-AMG and Audi quattro GmbH. Based on the 1986 model year E30 3-Series, the first M3 was introduced with a 2.3 L I4 S14B23 engine (also known as S14).
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