like aero posted, the rotors are NOT pressed onto the car, but unfortunately, it's bolted onto the back of the hub, which is pressed into the bearing. so you can loosen the 4 bolts all you want, but you won't be able to get the rotor out. UNLESS you take a hammer and pound the entire hub/bearings out from the rear of the knuckle. i've seen that done but i'm not sure how wise it is or safe. but it can be done without a press.