[JohnnyBfromPeoria]

To make an e-brake on a car with four wheel discs, there is usually a drum inside the rotor housing that uses little shoes to engage the inner surface. It would be pretty expensive to make the rotor's pads activate when pulling the handle. It's not a new design.

Why not just crawl under the car and adjust the cable where it splits into two? It is usually just under the transmission tunnel and there should be a nut attached to a long threaded bolt that allows for slack to be taken up. You have to adjust it when the parking brake is not engaged. Just tighten it up a few turns, check the brake and repeat if necessary. Make sure the brake has at least a few clicks until it engages, though, otherwise you may inadvertently drive around dragging the inner brake shoes in the back, heating the holy snot out of them.

John B.