Tell me the engine specifications of BMW M Series?

All the variants of BMW M Series come with a petrol engine. M3 Sedan and M4 Coupe is equipped with 2979cc engine with 6 cylinders having 4 valves per cylinder, which brings out the maximum power of 431bhp at 5500 to 7300rpm with a maximum torque of 550Nm at 1850 to 5500rpm. M4 Sedan and M5 Gran Coupe house a 4395cc engine with 8 cylinders having 4 valves engine that generates the maximum power of 560bhp at 6000 to 7000rpm with a highest torque of 680Nm at 1500 to 5750rpm. The cars have a great acceleration of 4.1 to 4.3 seconds and can reach upto the speed of 250kmph.