Everything except the 17"(bronze) or 16"(silver) rims is stock. 1991 was the last year of the e30 so this car seems as refined as it can be in factory trim. The upholstry is almost perfect. Everything is in working order. It's really the first car that I've owned that I just wanted to leave alone, performance wise. I've got two Concept competition 12" subwooferers sealed in the trunk with rockford fosgate component speakers and a Blaupunkt head unit. I'll get more detailed with the descriptions when I get more time. Thanks for checking this ride out.