GRAN TURISMO 3: A-SPEC UNLOCKABLES
Professional Mode
Select arcade mode, then highlight the "Hard" difficulty selection . Hold L1 + R1 until it changes to "Professional".
F1 Racecars
Get unlimited F1 racecars by entering/winning endurance races, as you can win prize cars from these endurance races an unlimited amount of times. Select a prize car by pressing X when the black circle is under the car you want.
Aston Martin Vanquish
British GT Car Cup in the Professional League.
Audi S4
Tourist Trophy in the Amateur League.
Audi TT 18T Quattro
Tourist Trophy Audi TT Race in the Beginner League.
Celica TRD Sports M
FF Challenge in the Amateur League.
Chevrolet Camaro SS
Stars and Stripes Grand Championship in the Beginner League.
Citroen Xsara Rally Car
Super Special Route 5 Wet in Rally.
Corvette C5R
Complete 50% of the game.
Ford Escort Rally Car
Tahiti Maze in Rally.