Microsoft Game Studios today announced the line-up of more than 50 American production cars that will be included in "Forza Motorsport 2," nearly half of which will be making their Forza debut when the game launches worldwide in May.

Whether it's new interpretations of muscle cars from the past like the 2007 Shelby GT 500 and old classics like the 1969 Camaro SS Coupe or today's hottest sports cars like the 2006 Chevy Corvette Z06, one of your favorite American sports cars is sure to be on the list. More world car lists to follow in the coming weeks.

We also wanted to elaborate on a very exciting new feature that will be included in "Forza Motorsport 2" - the Livery Editor. The livery editor adds a whole new level of customization to the game giving the Forza community the freedom to truly "build their dream vehicle" using any of the 300+ cars in the game. With the new and improved livery editor, gamers can put their own personal touch on every vehicle in their garage using unique paint schemes, personalized decals and logos, as well as their own art creations. Due to the Xbox Live Auction House, you will also be able to lock down the design on your masterpiece, put it up for virtual sale and share it with the world -- or at least the highest bidder. Who knows, maybe you'll be lucky enough to see that your next great creation helped some lucky member of the global Forza community make it to the top of the leaderboard!

For more details on the Livery Editor or the Auction House, cruise over to Forzamotorsport.net and have a look at this week's Pitpass Report. You will also be able to find updates on Turn 10's efforts at Game Developer's Conference this past week in San Francisco as well as screen shots of a few of the American production cars.

List of cars announced this week:

1997 Acura NSX

2001 Acura Integra Type-R

2002 Acura RSX Type-S

2005 Acura NSX

2006 Acura RL A-Spec

1987 Buick Regal GNX

2004 Cadillac CTS-V

1967 Chevrolet Corvette Stingray 427

1969 Chevrolet Camaro SS Coupe

1969 Chevrolet Camaro Z28

2002 Chevrolet Camaro SS

2002 Chevrolet Corvette Z06

1970 Chevrolet Chevelle SS-454

1970 Chevrolet Corvette ZR-1

1996 Chevrolet Corvette Grand Sport

2002 Chevrolet Camaro 35th Anniversary SS

2005 Chevrolet Cobalt SS Coupe

2006 Chevrolet Corvette Z06

1998 Chrysler Eagle Talon TSi Turbo

2004 Chrysler PT Cruiser GT

2005 Chrysler ME Four-Twelve Concept

1968 Chrysler Plymouth Barracuda Formula-S

2006 Chrysler Crossfire SRT6

1996 Dodge Stealth R/T Turbo

1999 Dodge Viper GTS ACR

2003 Dodge SRT4

2003 Dodge Viper Competition Coupe

2003 Dodge Viper SRT10

1969 Dodge Charger R/T-SE

2006 Dodge Charger SRT8

1966 Ford GT40 MkII

1970 Ford Mustang Boss 429

2000 Ford Mustang Cobra R

2003 Ford Focus SVT

2005 Ford Ford GT

2005 Ford Mustang GT

2006 Ford Focus ST

2003 Infiniti G35 Coupe

2002 Lexus SC430

2003 Lexus IS300

2006 Lexus IS350

2005 Panoz Esperante GTLM

1968 Pontiac GTO Hardtop

2004 Pontiac GTO

2006 Pontiac Solstice

2000 Saleen S281

2004 Saleen S7

2006 Saleen S281 E

2006 Saturn ION Red Line

2005 Scion tC

1965 Shelby Cobra 427 S/C

1968 Shelby Mustang GT-500KR

1999 Shelby Series 1

2007 Shelby GT500