The 'W' in a Mercedes model (eg W124) refers to the start of the chassis number, which usually begins WDB...
(Some) Coupes are Cxxx, Convertibles Rxxx
E class
W123 (1976-1986)
![](http://www.jespersvensson.se/bilder/bilar/mercedes_200_w123.jpg)
W124 (1985-1996)
![](http://www.6komma3.de/teil_1/250D.jpg)
(Some) Coupes are Cxxx, Convertibles Rxxx
E class
W123 (1976-1986)
![](http://www.jespersvensson.se/bilder/bilar/mercedes_200_w123.jpg)
W124 (1985-1996)
![](http://www.6komma3.de/teil_1/250D.jpg)