There seem to be several options for parking brakes on cars with rear disc brakes, the most popular but in many cases the worst are where the same hydraulically operated calipers have cable operation as well. My Jensen CV8 was the first car to adopt four wheel disc braking using Dunlop offerings. Needless to say that had a poor handbrake.
The dedicated drum brake within rotor is another option operated by cable in the conventional manner although drum diameter is necessarily limited.
Then there are dedicated cable driven calipers onto the common disc rotor or transmission brakes.
Strangely our F54 series Mini has the best handbrake I've ever come across. This despite using the former type but with a skeletal floating calipers hydraulically operated by single piston or cable driven by electric motor. Operation with any forward movement at all leads to an unintendedly abrupt stop given the full on or off nature of electric handbrake. Never dared using it above 5 mph.
