I should add by biggest gripes with BMW brakes is not the number of pistons they have or the weight of the setup. The have/had two major flaws.
1: Poor airflow to the rotor which prevents proper cooling of the rotors. Its the high temp that they reach that causes the fade and rapid wear of components.
2: The pads are a royal PITA to change. Why do I have to unbolt crap to change the pads? On proper calipers I pull one or two pins and just slide the pads out.
Manual gearboxes, the rotary dial of cars.