I think the prior post is mistaken. M-B never did a manual for the later V-8's; the 3.5's are the last ones. I do know of a very unusual 500E that RennTech converted to a 6 litre and added a BMW 850CSI manual gearbox (6-speed). The bill for that alone was $20K and I can tell you from driving the car that it is unusually notchy.

If you have to have a manual, buy a used 5-series BMW (530, the small V-8 or a 540).

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Charles Cleaver
1975 350SE + 1992 300CE-24 SportLine 5-speed + 2002 SLK320 6-speed + 1974 W114 280
1986 190E 2.3-16 (Decomm rear self-leveling suspension; Euro-code headlamps) sold
2004 Audi S4 6-spd - sold
1969 (2) and 1980 Porsche 911T, S, and SC - alas gone
1987 300SDL - Graf Spee; Euro-code headlamps; 16-inch 8-hole wheels - sold
1994 E420+(E500 suspension/E-code headlamps/PAD chip) sold
1968 250SE 4-speed (NICE car) - long gone
1962 220S 4-speed/column mount - long gone