Is it possible to play cooperative mode with mods? I use many of them for my offline career, but the must-have is definitely F1 2012 Realism Mod. If I'm gonna start a coop career with someone, I'd like to use at least that one.
Some will work mainly only skins though. The realism mod won't work because you need the default database to play online. Any mod that changes the database won't work.