These cars use floating calipers, not rotors. This is the size rotor you need: 11.1 x 0.86 (282 x 22) vented. The original equipment rotors are high quality. Hard to say what the aftermarket will be. Stuff from a retail or discount parts store will most likely be inferior. I've never had a problem with Brembo replacement rotors. Zimmerman replacement ones also look good.