Since you don't have an upgraded forum account I suppose you are using a techdemo. You can't mod techdemo. But to answer your question: All the mods are in the DRIVE forum section, which only who bought the game can view.
Just in case you have bought the game, follow the link in the email with the validation information. Then you'll be able to see those forums.
hey so i bought the game but still dont see no drive forum section am i missing something? I have played ror for years and this game is about 20x better i can already see the possibilities that are here so please help
Here. http://www.beamng.com/forums/17 And here's the community showroom (non-drive forums) http://www.beamng.com/forums/15-Community-Showroom Most of the items in the Community showroom are still WIP and don't have a download up, so the Drive forums would be your best bet for now. FastestClassic EDIT: DAMMIT NINJA'D