Forza Motorsport has released on Steam
Forza Motorsport on Steam
https://store.steampowered.com/app/2440510/Forza_Motorsport/
Out-build the competition in the all-new career. Race your friends in adjudicated multiplayer events. Compete in over 500 cars on world-famous tracks with cutting edge AI, advanced physics, and tire and fuel strategy.
To rather mixed reviews...