Microsoft and Turn 10 have announced the four add-ons that were only available to those that bought new copies of the standard edition and Limited Collector's Edition of Forza Motorsport 3 are now available for download as the "VIP Membership Car Pack." Released for 800 MSP, with each download in March, Turn 10 will donate $10 to Save the Children.

From the press release:

The “VIP Membership Car Pack” gives you exclusive access and visibility in the “Forza Motorsport” community. You’ll receive special recognition on scoreboards, in multiplayer lobbies, on ForzaMotorsport.net, in the “Forza Motorsport 3” Storefront, and it places your VIP auctions at the top of the “Forza Motorsport 3” Auction House. VIP membership also includes these five must-have VIP Cars: 2008 Aston Martin DBS, 2009 Chevrolet Corvette ZR1, 2007 Ferrari F430 Scuderia, 2007 Lamborghini Gallardo Superleggera, and 2007 Porsche 911 GT3 RS (997).

In addition, more VIP-only content has been released for purchase:

• Sidewinder Proving Grounds Track Pack
• Benchmark High Speed Ring Track Pack
• Motorsport Legends Car Pack

These are now available on the Xbox Live Marketplace for 400 MSP each.