As you likely know, the gearbox is a six-speed manual and will be fitted to the regular M3 and M4 models while the Competition versions will feature an eight-speed automatic. The manual retains an H-pattern and now allows you to switch automatic rev-matching on or off as you prefer, regardless of which drive mode the car is in. To maximize stiffness and shift precision, the gearbox is doubly attached to the body. Karsten believes that BMW has one of the best manual gearboxes available, and has decided against optimizing the system any further beyond the aforementioned stiffening. We’ll have to drive the cars to see if Karsten is right, but our own experience with BMW manuals has been iffy for the most part, so we hope this increased rigidity improves the way it feels.