Yes u can play grid autosport online completely free. So, here is what u r going to need.
#1. Steam updated client. Download from: http://store.steampowered.com/about/
#2. The player u are about to play must have steam also & both of the must be connected as friend for the session invite (will understand later).
#3. Apply this crack: http://www.mediafire.com/download/2t...gqg/RVTFiX.rar
Please note that applying the crack may permanently damage Ur active profile. So, make sure to back up Ur save file if u want to keep Ur current career progression.
#4. Start the normal GRIDAutosport.exe DO NOT RUN THE “AVX” extension.
#5. In the game menu go to online.
>it will tell u connection refused. Click ok
> do not close steam in the background.
> select multilayer.
#6. Now one of Ur friend must host. It can be anyone. If anyone invites u from steam u will get instant notification from steam inside the game. Just accept & join the lobby. & then race like hell: D