The game features all eleven teams and twenty-two drivers competing in the 2013 season, as well as the nineteen circuits and Grands Prix. A "Classic Edition" of the game features additional drivers, cars and circuits from the 1980s and 1990s, including the Williams FW07B, FW12, FW14B, FW18, Ferrari F399, F1/87/88C, Lotus 98T, and 100T. Additional circuits include Estoril, Imola, Brands Hatch and Jerez.Go to: http://store.steampowered.com/ and download STEAM client
Click “Install Steam” (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don’t have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam…
Follow the onscreen instructions to complete the process.
After successful code verification go to the “MY GAMES” tab and start downloading.