Fits what vehicles: 1971-1974 Jaguar XKE, 1974-1987 Jaguar XJ6, 1975-1979 Jaguar XJ12, 1981-1992 Jaguar XJ12, 1976-1996 Jaguar XJS, 1997-1998 Aston Martin DB7. The slots also help to clear any excess dust and debris to help keep pad grip to a maximum while also increasing pad longevity.