Originally Posted by KingOfJericho
2001-02 M Coupe, Z8, and 1M. All three models are holding their value remarkably well.
This. Except for possibly the Z8 which seems to be having some issues with the aluminum frame failing, both the butchered Dinan ones and even the stock ones. I sold my S52 M Coupe, but if it had been a more pampered S54, I'd likely still have it. Nothing BMW has made since then has appealed to me nearly as much, including the E86, which probably has moderate collectible value too, but not as much as the E36/8.