The M-tuned ZF 8HP automatic transmission and advanced M xDrive system have the monumental task of distributing 727bhp of combined hybrid torque to the tarmac. Whether you are launching in 4WD, attacking corners in 4WD Sport, or shredding tyres in the pure rear-wheel-drive 2WD mode, driveline rigidity is paramount. Eliminate unwanted axle deflection and chassis movement by installing stiffened polyurethane Drivetrain Bushes. Optimize your power delivery by upgrading your mechanical Differentials, supported by our wide array of Misc Drivetrain Parts to ensure seamless integration between the V8 and the electric motor.