I've got a 2013 BMW 335i with M-Sport options. It prompted this question but the issue (and probably the solutions) are not unique to it.
Like many such vehicles, the rear brakes are part drum, part disc. Specifically, the rotor is shaped like a top hat, and the main disc is the brim of the hat, while the parking brake shoes operate on the inside of the main part of the hat. The problem is that the inside of that "hat" and the hub on which it sits often rust together making it very difficult to remove the rotor to replace the parking brake shoes. I have seen that there are some aftermarket rotors which appear to have paint applied to the inside surface, but it's not entirely clear.
Is there a way to make this easier to disassemble next time? Could I paint the hub surface and/or the inside of the rotor? Would high temperature anti-seize grease be appropriate here? Or should I just clean things up and reassemble as is? I had to use my biggest gear puller to get these off this time and was concerned that I might take a chunk out of the edge of the rotor. There must be an easier way...