What Engine Powers the BMW M3? Full Specs and Performance Insights

The BMW M3 stands as an iconic blend of precision engineering and high-performance power, with its engine playing a central role in defining its driving character—so what engine is truly under the hood?

The BMW M3 is powered by a high-revving inline-six cylinder engine, specifically a naturally aspirated or turbocharged variant depending on the model year. The current generation features a 3.0-liter inline-six (B58) in non-turbo variants, delivering up to 425 horsepower, while turbocharged versions, such as the B58 twin-turbo in the M3 Competition, produce 503 horsepower, combining raw power with responsive handling.

The inline-six engine remains a hallmark of BMW’s performance legacy, offering smooth power delivery, excellent balance, and a distinctive exhaust note. Its 90-degree configuration enhances rigidity and reduces vibration, making it ideal for the M3’s track-focused dynamics. Both naturally aspirated and turbocharged variants prioritize driver engagement through precise throttle response and refined fuel efficiency.

Since its debut, the M3 engine has evolved significantly—from the B3’s 3.2L inline-six to the current B58 twin-turbo unit. Each iteration improves power, efficiency, and reliability while preserving the M3’s legendary driving dynamics. The B58’s twin-turbo setup enables rapid acceleration without sacrificing the characteristic torque curve of BMW’s inline-six heritage.

Whether with the high-revving B58 inline-six or its turbocharged counterpart, the engine in a BMW M3 remains the core of its performance identity. Understanding its design and power output deepens appreciation for BMW’s commitment to driving pleasure. For enthusiasts seeking precision and power, the M3’s engine continues to set benchmarks in the sports sedan segment. Explore your next M3 and feel the engineering excellence firsthand.

The E30 M3 used the BMW S14 four-cylinder engine, a high-revving DOHC design with a head closely based on that of the BMW S38 six-cylinder engine and the block from the BMW M10 four-cylinder engine with a 7,250 rpm redline. [10][12] In countries where the M3 was sold with a catalytic converter, the initial versions were rated at 143 kW (195 PS. Read our 2026 BMW M3 review for information on ratings, pricing, specs, and features, and see how this sedan performed in our testing.

The M3 uses BMW's twin-turbocharged 3.0-liter "S58" inline six, an engine shared with the M2 and M4 models and available in three different states of tune in the M3 lineup. Rear-wheel drive comes standard, though all-wheel drive is standard on the M3 Competition xDrive. The base M3 gets a manual transmission; both Competition models get an eight.

In the #M3M4explained series, the developers of the BMW M3 and M4 have the floor. In episode eight they explain the engine details of the new BMW M3 Competition and BMW M4 Competition. BMW M3 evolution - every generation's specs, power & history from the E30 to today's G80.

Find out which M3 is the best, full breakdown inside (+ best mods for tuning). 2027 BMW M3 electric debuts with four motors-one per wheel-replacing mechanical differentials with software control. Workshop reveals specs, Design to Power battery tech.

Explore the features and specifications of the 2026 BMW 3 Series Sedan M models. Find information on transmission, engine type, drivetrain, and more. What engines are in BMW M3? Under the hood of BMW M3 models you may find the engine options belonging to B58, N55, S65, M54 and M52 series.

Depending on the model year and trim level, the engine size ranges from 3.0L I-6 to 4.0L V-8. Browse the charts below to uncover important BMW M3 engine specs like horsepower, torque, displacement, and oil type. BMW 3 Series Saloon M models: Technical data of all models.

Performance, measurements, fuel consumption and further specifications at a glance. The BMW M3 Competition and the CS are equipped with the same 3.0-liter "TwinPower" turbo 6-cylinder engine. However, BMW did some fine.