Forza Motorsport 2 Cheats - Xbox 360

Achievements
Complete each achievement to get the allotted gamerscore:

1,000,000 Online Credits (30) - Earn 1,000,000 "Online Credits" from Tournaments and Career races.
All Bronze Arcade (15) - Achieve a bronze medal in every Arcade Race.
All Cars from France (1) - Collect all of the cars from France in your Career garage.
All Cars from Germany (15) - Collect all of the cars from Germany in your Career garage.
All Cars from Italy (10) - Collect all of the cars from Italy in your Career garage.
All Cars from Japan (30) - Collect all of the cars from Japan in your Career garage.
All Cars from Korea (1) - Collect all of the cars from Korea in your Career garage.
All Cars from Spain (1) - Collect all of the cars from Spain in your Career garage.
All Cars from Sweden (2) - Collect all of the cars from Sweden in your Career garage.
All Cars from the United Kingdom (5) - Collect all of the cars from the United Kingdom in your Career garage.
All Cars from the United States (25) - Collect all of the cars from the United States in your Career garage.
All Gold All Race Types (75) - Achieve a gold medal in every Career Race Type.
All Gold Amateur Cup (25) - Achieve a gold medal in every Career event of the Amateur Race Type.
All Gold Arcade (35) - Achieve a gold medal in every Arcade Race.
All Gold Endurance (70) - Achieve a gold medal in every Career event of the Endurance Race Type.
All Gold Factory-Spec (40) - Achieve a gold medal in every Career event of the Pro Spec Race Type.
All Gold Manufacturer Club (20) - Achieve a gold medal in every Career event of the Manufacturer Race Type.
All Gold Professional Series (60) - Achieve a gold medal in every Career event of the Pro Series Race Type.
All Gold Proving Grounds (15) - Achieve a gold medal in every Career event of the Proving Grounds Race Type.
All Gold Regional Championship (50) - Achieve a gold medal in every Career event of the Regional Championship.
All Gold Rivalry Face-Offs (30) - Achieve a gold medal in every Career event of the Rivalry Race Type.
All Gold Semi-Pro Events (35) - Achieve a gold medal in every Career event of the Semi-Pro Race Type.
All Silver Arcade (25) - Achieve a silver medal in every Arcade Race.
All Time Trials Set (40) - Beat the target time in every Time Trial race.
Blowout (5) - Awarded to the driver who wins the race, beating the rest of the field by a full race section.
Car Broker (20) - Buy or sell 10 cars online in the Auction House.
Car Level 5 (5) - Achieve a car level of 5 in Career mode.
Crushing Victory (5) - Awarded to any driver who finishes the race with a lapped opponent.
Flawless Lap (5) - Awarded to the driver(s) - who finish a lap with no time penalty against an opponent.
Flawless Race (5) - Awarded to the driver(s) - who finish the race with no time penalty against an opponent.
Hard Charger (5) - Awarded to the driver who starts in 8th place and comes in 1st place.
Hardcore (5) - Awarded to the single driver who wins the race with full Difficulty, including no Assists.
Level 1 (5) - Reach Level 1 in Career mode.
Level 10 (15) - Reach Level 10 in Career mode.
Level 20 (20) - Reach Level 20 in Career mode.
Level 30 (30) - Reach Level 30 in Career mode.
Level 40 (40) - Reach Level 40 in Career mode.
Level 50 (50) - Reach Level 50 in Career mode.
Natural (5) - Awarded to the single driver who wins the race with all Assists turned off.
Underdog (5) - Awarded to the driver who wins the race with a car in the lowest PI of the field.

Unlock Cars
Complete the indicated task to unlock the corresponding car:

Acura #42 RealTime Racing NSX - Win the Championship Series: Club NSX Event.
Acura Integra Type-R - Win the Amateur: Asian Open.
Aston Martin V12 Vanquish - Win the Amateur: Heavyweight Challenge.
Audi #1 Infineon R8 - Win the Championship Series: European R-P1 Open.
Audi #22 3R-Racing 911 GT3 Cup - Win the Endurance: Class R-GT Championship.
Audi #4 Johansson R8 - Win the Professional: Class R-P1 Championship.
Chevrolet #73 Corvette Z06 - Win the Championship Series: North American R-GT Open.
Chevrolet #e IMSA Corvette C5-R - Win the Championship Series: All-American Face Off.
Chevrolet Corvette Stingray 427 - Win the Point-to-Point: American Muscle Challenge.
Chevrolet Lingenfelter 427 Corvette - Win the Amateur: Club Corvette Event.
Dodge #1 Team Zakspeed Viper ACR - Win the Endurance: Class A Championship.
Dodge #22 Viper Competition Coupe - Win the Championship Series: Class R-GT Championship.
Dodge #23 Viper Competition Coupe - Win the Professional: Extreme-Power Open.
Dodge Hennessey Viper 800TT - Win the Amateur: All-American Face Off.
Ferrar F355 Challenge - Win the Professional: Class A Championship.
Ferrar F40 - Win the Professional: Class S Championship.
Ferrari #12 Risi Competizione F333SP - Win the Championship Series: Class R-P1 Championship.
Ferrari #88 IMSA 550 Maranello - Win the Championship Series: Class S Championship.
Ferrari 250 GTO - Win the Professional: Classic Sports Car Event.
Ferrari 330 P4 - Win the Endurance: Classic Sports Car Event.
Ferrari 360 Challenge Stradale - Win the Professional: Ferrari 360 Modena Cup.
Ferrari Dino 246 GT - Win the Championship Series: Class C Championship.
Ferrari F50 - Win the Professional: Ferrari Supercars Event.
Ford #10 Tiger Racing Mustang - Win the Professional: Class R-GT Championship.
Ford GT40 - Win the Championship Series: Ultra-Lights Challenge.
Ford Mustang Boss 429 - Win the Amateur: American Muscle Challenge.
Ford Saleen Mustang S281 - Win the Amateur: Club Mustang Event.
Ford Shelby Mustang GT-500KR - Win the Championship Series: Class D Championship.
Honda VIS Racing Integra Type-R - Win the Point-to-Point: Tuner Face Off.
Honda Wings West Civic Type-R - Win the Amateur: Low-Power Open.
Lancia Delta Intergrale EVO - Win the Amateur: North American Open.
Lancia Stratos HF Stradale - Win the Amateur: Mid-Engine Event.
Lotus Esprit V8 - Win the Professional: Lotus Exige Cup.
Lotus Exige - Win the Professional: Ultra-Lights Challenge.
Mazda AB Flug RX-7 - Win the Point-to-Point: Superstreet Face Off.
Mazda INGS RX-7 - Win the Amateur: Superstreet Face Off.
Mazda MX-5 MAZDASPEED - Win the Professional: MX-5 Miata Sport Club.
Mazda RX-7 Sprint R - Win the Professional: Low-Power Open.
Mazda RX-8 MAZDASPEED - Win the Amateur: Rotary-Engine Challenge.
Mercedes #11 D2 CLK-GTR - Win the Endurance: Class B Championship.
Mercedes #3 CLK-DTM - Win the Professional: Class R-GTS Championship.
Mitsubishi Lancer Evolution VI TME - Win the Professional: Class C Championship.
Mitsubishi Lancer Evolution VIII FQ-330 - Win the Point-to-Point: Front-Engine RWD Event.
Mitsubishi Sparco Lancer Evolution VIII - Win the Professional: Medium-Power Open.
Nisan 240 ZX - Win the Amateur: Z Cars Challenge.
Nissan #23 Xanavi NISMO GT-R - Win the Endurance: Class R-GTS Championship.
Nissan #32 R390 GT1 - Win the Championship Series: Asian R-GTS Open.
Nissan 240 SX SE - Win the Amateur: All-Wheel-Drive Event.
Nissan Skyline GT-R V Spec II Nür - Win the Point-to-Point: Club Skyline Event.
Pagani #17 IMSA Zonda GR - Win the Championship Series: Class A Championship.
Pagani Zonda C12 - Win the Professional: High-Power Open.
Porsche #17 Porsche 962c - Win the Endurance: Class R-P1 Championship.
Porsche #23 IMSA 911 GT3-RS - Win the Championship Series: Class B Championship.
Porsche #26 911 GT1 Le Mans - Win the Endurance: Porsche 911 GT2 Cup.
Porsche #8 24h Nurburgring TT-R - Win the Endurance: Class C Championship.
Porsche 550 Spyder - Win the Amateur: Roadster Challenge.
Porsche 911 Carerra RS - Win the Professional: Class B Championship.
Porsche 911 GT2 - Win the Point-to-Point: Club 911 Event.
Renault Sport Clio V6 RS - Win the Amateur: Hatchback Challenge.
Saleen #2 IMSA S7R - Win the Endurance: Class S Championship.
Shelby Cobra 427 SC - Win the Championship Series: Classic Sports Car Event.
Shelby Series 1 - Win the Professional: Shelby Cobra Cup.
Subaru Impreza 2.5 RS Coupe - Win the Amateur: Front-Wheel-Drive Event.
Subaru Impreza 22B STi - Win the Amateur: Rallisport Face Off.
Subaru Impreza WRX STi Spec-C (J) - Win the Point-to-Point: Rallisport Face Off.
Toyota #27 GT-ONE TS020 - Win the Championship Series: Class R-GTS Championship.
Toyota 2000GT - Win the Professional: Class D Championship.
Toyota AE86 Sprinter Trueno - Win the Amateur: European Open.
Toyota APR Performance Celica GTS - Win the Point-to-Point: All-Wheel-Drive Event.
Toyota Border MR2 Turbo T-bar - Win the Amateur: Tuner Face Off.
Toyota Border MR2 Turbo T-bar - Win the Point-to-Point: Front-Wheel-Drive Event.
Toyota Celica 1800 VVT-i - Win the Amateur: Front-Engine RWD Event.
Toyota VIS Racing MR2 turbo T-bar - Win the Point-to-Point: Mid-Engine Event.
TVR Tuscan R - Win the Professional: TVR Tuscan Cup.
Volvo #25 At-Speed S60 R - Win the Endurance: Class D Championship.

Car list (demo version)
C Class
2005 Ford Mustang GT
2003 Dodge Neon SRT4
2002 Honda Integra Type-R
2004 Mazda RX-8 Mazdaspeed
2006 Lexus IS350
2005 Subaru Legacy B4 2.0 GT
2003 Nissan Fairlady Z
1997 BMW Motorsport M3 E36

A Class
2005 Lamborghini Gallrado
2007 Porsche 911 Turbo (997)
2004 Ferrari F430
2005 TVR Sagaris
2003 Dodge Viper SRT-10
2005 Mercedes SLR
2005 Ford GT
2006 Chevrolet Corvette Z06

R2 Class
2005 Maserati #35 Risi Competizione MC 12
1997 McLaren #43 Team BMW Motorsport McLaren F1 GTR
2005 Ferrari #11 Larbre Competition 550 Maranello GTS
2003 Pagani #17 Carsport America Zonda GR
1998 Porsche #26 Porsche AG 911 GT1-98
2003 Saleen #2 konrad Motorsports S7R
1998 Nissan #32 Nissan R390 GT1
2006 Chevrolet #4 Corvette Racing C6.R

Glitch: Infinite Money
Note: This trick will only work if your game has not been patched through Xbox Live. Select any car. Buy the upgrade second to the last. After buying it, reinstall the stock part, and there should be a blue check on the purchased part. Go to it, then press [RT] + [X] as you are selling the part you just purchased. It should move over to the one on the end. You will receive the money for the one on the end, and the one that you purchased should still be there. You can repeat this as many times as desired. Note: If you have already bought the best upgrade, this glitch will not work; instead, it will sell the best upgraded for the sell price.