Microsoft today announced 10 brand new racers and muscle cars in a downloadable car pack for “Forza Motorsport 2,” which will be available on Xbox LIVE Marketplace this weekend.

First up the 2007 SEAT Leon Cupra will be available as a FREE download to bolster the already extensive collection of “Forza” racers and for 400 Microsoft points, Forza fans can own the track taking laps in 10 great vehicles including a race ready turbo diesel (the Audi R10) and a low performance class inline 4 that’s an absolute tuner’s dream (the Honda Civic Si Coupe).  Show your muscle with an American classic, the 1970 Dodge Challenger R/T or turn it up another notch behind the wheel of the 415 horsepower, 8,400 rpm 2007 Porsche GT3 RS. 

A full list of the available cars is below:

2007 SEAT Leon Cupra (FREE DOWNLOAD)

2006 Audi R10 (#8 Audi Sport Team Joest) Prototype

1970 Dodge Challenger  R/T Hemi

2006 Dodge Challenger Concept

2006 Honda Civic Si Coupe

2007 Honda Civic Type-R

1967 Lamborghini Miura P400

2006 Lamborghini Miura Concept

2007 Porsche 911 GT3 RS (997)

2007 Saturn Sky Red Line

2007 SEAT Leon Supercup