The R1 Concepts Geo-Carbon drilled-and-slotted rotor is a rear replacement rotor for Jaguar XJ (2006–2015) applications. Marketed as a DFC Geoperformance rotor, it features drilled holes and slots on the braking face to support pad contact and channel debris. This overview states the rotor's rear application and the XJ model years explicitly provided by the source.
DFC 06-15 Jaguar XJ Rear Drilled & Slotted Geoperformance Rotors