Something to take note of before purchasing this title on PC: This is a really lazy port. Trying to run this game out of the box is next to impossible, especially on older systems. The graphics options are severely limited and don't offer much scope for optimising the game to run on low or mid range systems. The game also has a nasty habit of locking up completely for no reason at all.
Though you may be excited and eager to play it as soon as it arrives, I highly recommend you take the time to update both the game and your graphics drivers.
Let me just say, that this game is highly enjoyable when it is running properly. The graphics are incredible, even on lower settings and the euphoria physics system paves the way for some awe inspiring crashes and bails. The PC version also includes a replay system so you can save and share your finest moments and worst pile ups. I highly recommend playing coop with friends as I have never laughed so hard.
Now the bad news. Of the 10 or so times I have tried, my friends and I have only managed to play 4 games together. Games for Windows live is utterly useless for trying to connect to your friend's games.
Still, for the current price and with the patches all available to download straight away using the included Social Club software, this is a steal.