Okay, it's a bit different, but I like it very much:
Batracer:
F1 Manager Game - BATracer 2009 - free multiplayer motorsport webgame
You can compete as a driver in the 2009 F1 season, but there are other classes aswell, like other years of F1, GP2, Indycar, DTM and many more.
The game is kind of manager based, but you compete as a driver. Working on a racesetup together with a teammate you can try to win the pole and the races. The site also keeps track of all the records what makes it brilliant for me (I'm a statistics fan).
Started playing about a 2 months ago and it's very addictive