How much data does Forza 3 need to install on my hardrive?

See I have Forza 3 and it tells me that for me to obtain the whole roster of cars, I need to install the second disc to my hard drive.





Problem is how much data does it need to install from the second disc?How much data does Forza 3 need to install on my hardrive?
Its somewhere in the region of 2.4 gig. You dont have to install everything, you can just select car packs or track packs.

Bracelet

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