I have been told by many MB enthusiasts that have seen my car , a 1979 450 SLC that any 70 s SLC s that are still on the road and look this good are rare . The SLC version of the 450 s produced throughout the 70 s were one fourth that of the SL s because of demand from Mercedes and popularity . I really like the SLC version better than the SL because the added length of the car and the less radical angle of the larger back window make for a much sleeker look with better lines . Any cars looks are only as strong as it s weakest point , meaning - that most of the convertible tops I ve seen are weathered looking and the back window is UV damaged or scratched up and that the top as a whole detracts from the cars looks . I have an electric sun roof that I can open and close anyway so I don t have to deal with the noise that convertible tops make rattling against their frame .