Boosting the races is next to impossible being as you can't invite people into ranked games and there is no option to actually host either. The game just kind of randomly assigns a host.
And from the party screen you can't select deathmatch, races, or co-op.
Good luck getting your crew into the same game i couldn't.
Ranked #1 in Utah, 1'st to 100,200,300k in Utah
235 retail complete, 26 arcade complete
Gsl season 7 champion!