What rims were fitted and which had RDK?
Hi Bas, I checked this for you:
The 1989 S4 had closed forged rims but without RDK. The GT had design rims without RDK.
The 1990 S4 had closed forged rims but now WITH RDK. The GT already had design rims, now with RDK.
The 1991 had only design rims, S4 and GT equal, and with RDK
The 1992 and 1993 had Cup rims with RDK
The 1994 and 1995 had also Cup rims, but due to RDK becoming obsolete the RDK sensor disappeared, so (not 100% sure) the rims are without RDK sensor.