It would be like Messenger or AIM except you could get on with which ever forum members and type real time to one another. The conversations would not be persistent, meaning whatever you converse about would only be available to those in the "chat room" at that time.
Don't know precisely what it would look like but here is a basic example:
'05 Ford V-10 4x4 SMB "50" White
'00 Jeep Cherokee 4x4 Highly Modified
'04 Jeep Grand Cherokee- wife won't let me modify it. :-(
Does anyone really read this stuff other than surfgeek?