Hi, was not sure which forum the OLD M6 fell under;(E24?) trying to find out how to tell the diff. between the old Euro M6 VS. the Us version, mid to late '80's...I know the Euro was faster and lighter with less steel in doors,bumpers but is it true the Euro DID not have the rear A/C unit; looking at an 88 but do not want the Euro model.....or do I? thnx , Dogdoc, Atlanta