So you think that Forza MotorSport 4 is running out of juice?  Think again.  Microsoft has just introduced a new set of cars that will have you burning around the tracks in style.

The company has announced that its Porsche expansion for the game is now available.  This download provides plenty of activities for the game, including 30 new cars, 20 additional events and new Achievements to unlock.  It’s practically a sequel within itself.

There’s plenty to race around in the game, and that’s a good thing, because this isn’t your typical expansion.  It’s certainly not priced as such, as it’ll set you back 1600 Microsoft points, or $20, to take it all in.

We’ll give it a spin and let you know if it’s worth the money soon!