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The M TwinPower Turbo engine in the BMW M4 Convertible.

At the core of the BMW M4 Convertible is the redeveloped M TwinPower Turbo straight six-cylinder petrol engine. With tremendous power and an unmistakeable sound, the interplay of optimally aligned motorsport technologies allows for direct power development with a boost of 431hp.

M TwinPower Turbo straight six-cylinder petrol engine.

The 3.0l M TwinPower Turbo straight six-cylinder engine combines the best of both worlds: high rev characteristics with up to 7,600 rpm and superior power with a maximum of 550 Nm torque. The 431hp M engine accelerates from 0 to 62mph in just 4.3 seconds (with M DCT Drivelogic). Bi-Turbo direct fuel injection and typical M fine-tuning ensure that the engine responds directly to the slightest nudge of the accelerator with enthusiastic boost and excellent torque. A motorsport suitable cooling concept as well as an additional oil sump cover and oil drain pump, the M engine is ready to take on any challenge. Numerous innovations like sleeveless construction or a lighter, forged crankshaft continue the intelligent lightweight concept, improve dynamics and acceleration, lower consumption and provide an optimal weight distribution of almost 50:50. The reward: unprecedented agile driving that’s impressively underscored by the unmistakeable sound of the M engine.
CO2 emissions in g/km 213.0 [203.0]  [1]
Combined (ltr/100km)
Combined (mpg)
9.1 [8.7]
31.0 [32.5]  [1]
Cylinders/valves per cylinder 6/4
Capacity (cc)
Capacity (cinch)
Stroke/Bore (mm)
Stroke/Bore (inch)
Max output (kW/hp/rpm)
317 (431)/5500-7300  [2]
Max torque (Nm/rpm)
Compression ratio : 1
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Fuel consumption is determined in accordance with the ECE driving cycle (93/116/EC) made up of approximately one third urban traffic and two thirds extra-urban driving (based on the distance covered). CO2 emissions are measured in addition to fuel consumption as such. Further information on the official fuel consumption and on the official specific CO2 emissions of new cars can be found in the guidelines at (siehe The figures for fuel consumption and CO2 emissions depend on the equipment selected.
Rated output: BMW recommends the use of super unleaded 95 RON fuel. Unleaded RON 91 fuel or higher with a maximum ethanol limit of 10 percent (E10) is also permitted. The performance and fuel consumption rates listed are based on the use of RON 98 fuel.
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