I say $3500 is way too high. Crappy wire wheel covers and vinyl top drop the value. I paid $3000 fifteen years ago for my 88 CSC, I would pay $1000 now for that same condition and no more. Mine had the nice 14" aluminum wheels and pillow top interior, otherwise the same, a fully loaded Brougham. If anything with new 300+ HP V6 base cars, let alone the new V8's, these cars actually worth less, not more. I like it for the Olds V8 but nearly everyone complained about how underpowered the swirl port 307 was back in the day. I would bet it also has 2.56 gears, mine did like the majority had, 3.08 was the only option, look on the trunk lid. Good luck.