Since the end of the Detroit Auto Show this year we’ve been getting more details on the coming line of M Performance vehicles from BMW. Taking their spots between the standard line and the true M vehicles, examples like the 2012 BMW X6 M50d and M550d xDrive (neither of which will come here) get tweaks developed by the M division under the hood, in the cabin and around the exterior, mated to traditional items like torque converter automatic transmissions instead of dual-clutch gearboxes. Funk Flex