I am pretty sure that there are some 93 specfic parts. The 500SL had a m119 motor which is much more popular than the v12s. M119 are found in many mercedes like 500E, E420, S420 and s500. I own both motors m119 and the v12 and the m119 costs me about half in costs than the v12. I think the USA destined production numbers were usually less than 2000 per year dwindling down to about a thousand at the end of the production.