Mike,3 door Sierra RS Cosworths are RWD as well as Sierra RS 500 Cosworths(3door), Sierra Sapphire RS Cosworths come in both RWD (88 E plates to 91 H plates) and 4WD (91 H plates to 93 L plates) :DOriginally Posted by Last Of The Nova SR'S
All Escos were 4WD from the factory - with exception of a 24v V6 test mule