Although I am a fellow 300(C)E owner, I can only say: NO!
Mercedesshop already started a separate SL-forum and G wagen-forum. If model splices the forum, one will miss a lot of (useful) information and discussions/replying threads will be slow.
There are several MB forums that have model related sections...These forums are not as good as this one and won't even get close! They have little traffic and are to be considered slow.
Don't split up the forum into model related sections; you will miss a lot! How about the 300SL/300SE/300GE threads, you will not read because you stick to the W124 section?
...just my opinion...greetingz,
with a minor 600+k