FORD SIERRA II Sapphire (GBG, GB4) 2.0 RS Cosworth Saloon Petrol 11/1988 01/1990 RWD 16 204 150. FORD SIERRA II Sapphire (GBG, GB4) 2.3 D Saloon Diesel 11/1988 09/1989 RWD 8 67 49. FORD SIERRA II Sapphire (GBG, GB4) 2.9 4x4 Saloon Petrol 08/1988 02/1993 AWD 12 150 110.