FYI, some useful links regarding the different chassis types of MB's post 1936...

==> www.mercedes-benzownersclub.co.uk/model_list.htm

==> www.mbvc.nl/modellen.htm

==> SL-related only (found on www.mercedes-benz-clubs.com, rubric: specials) :

* 1957-1963 [W 198 II]
300 SL (1957 - 1963): R6, 215 PS

* 1963-1971 [W 113]
230 SL (1963 - 1967): R6, 150 PS
250 SL (1966 - 1968): R6, 150 PS
280 SL (1968 - 1971): R6, 170 PS

* 1971-1989 [R 107]
280 SL (1974 - 1985): R6, 185 PS
300 SL (1985 - 1989): R6, 180 PS
350 SL (1971 - 1980): V8, 200 PS
380 SL (1980 - 1985): V8, 218 PS
420 SL (1985 - 1989): V8, 204 PS
450 SL (1971 - 1980): V8, 225 PS
500 SL (1980 - 1989): V8, 240 PS
560 SL (1985 - 1989): V8, 227 PS

* 1989-2001 [R 129]
SL 280 (1993 - 1998): R6, 193 PS
SL 280 (1998 - 2001): V6, 204 PS
300 SL (1989 - 1993): R6, 190 PS
300 SL-24 (1989 - 1993): R6, 231 PS
SL 320 (1993 - 1998): R6, 231 PS
SL 320 (1998 - 2001): V6, 224 PS
500 SL (1989 - 1998): V8, 326 PS
SL 500 (1998 - 2001): V8, 306 PS
600 SL (1992 - 2001): V12, 394 PS

* ab 2001 [R 230]
SL 350 (2002 - 2006): V6, 245 PS
SL 350 (ab 2006): V6, 272 PS
SL 500 (2001 - 2006): V8, 306 PS
SL 500 (ab 2006): V8, 388 PS
SL 55 AMG (2001 - 2006): V8, 500 PS
SL 55 AMG (ab 2006): V8, 517 PS
SL 600 (2003 - 2006): V12, 500 PS
SL 600 (ab 2006): V12, 517 PS
SL 65 AMG (ab 2004): V12, 612 PS