There are five different unlockable cars in the racing/simulation game Gran Turismo 5 Prologue for the PS3. Each of the unlockable cars can be obtained by completing a certain set of the racing events. The Ferrari F2007 can be unlocked by completing all of the A, B, C and S class events; the BMW Concept 1 Series tii '07 is obtained by completing all of the B class events; the Daihatsu OFC-1 car is unlocked by completing all of the C class races; the Nissan GT-R Proto '05 is unlocked by completing all S class races, and lastly, the Nissan Skyline Coupe Concept 'p7 is unlocked by completing all of the A class races. Game Info' Gran Turismo 5 Prologue is a racing/simulation game for the PS3 and developed by Polyphonal Digital. The game is a demo version of the forthcoming Gran Turismo 5, and features a pared down version of the full game with six different tracks and 37 cars. How to Unlock

1. Nissan Skyline Couple Concept 'p7: Complete all A class races
2. Nissan GT-R Proto '05: Complete all S class races
3. Daihatsu OFC-1: Complete all C class races
4. BMW Concept 1 Series tii '07: Complete all B class races
5. Ferrari F2007: Complete A, B, C and S class races

Game Info Gran Turismo 5 Prologue is a racing/simulation game for the PS3 developed by Polyphony Digital. The game is actually a "demo" of the the full version of Gran Turismo 5, and ships with 37 cars and six playable tracks. Fast Facts:

1. Developer: Polyphony Digital
2. Publisher: Sony Computer Entertainment America
3. Platform: PS3
4. Genre: Racing
5. Mode: Single and Multiplayer
6. Format: Download or Blu-Ray disk
7. Release Dates:
   1. U.S.: April 15, 2008
   2. Japan: October 2007
   3. Europe: March 28, 2008
   4. Australia: 2008

GT 5 Prologue Courses

1. Super Speedway Daytona
2. Road Course Daytona
3. Suzuka Circuit
4. Fuji Speedway
5. Eiger Nordwand Course
6. London City Course