In '85, there was no CS. There was the 4000s, and the 4000s Quattro. In '86 they had the 4000CS (or was the fwd just the s in '86?), the 4000CS Quattro, and the funky "special edition" which had white paint and a maroon leather interior (hey, it was the eighties). Same in '87, less the s.e. All fwd 4k's had the 1.8l 4 banger, Quattros got the 5er. All 4k based coupes got the 5. -Adam