Hints and tip for Gran Turismo 3: A-Spec

Professional mode:

Select arcade mode, then highlight the "Hard" selection on the difficulty selection screen. Hold L1 + R1 until it changes to "Professional".

Toyota Sprinter Truendo GT-Apex:

Successfully complete the Sunday Cup with gold medals in all three races to unlock the Toyota Sprinter Truendo GT-Apex.

Mazda Eunos Roadster:

Successfully complete the Cupman Cup with gold medals in all three races to unlock the Mazda Eunos Roadster.

Mazda Roadster RS:

Successfully complete the Spider and Roadster cups with gold medals in all races to unlock the Mazda Roadster RS.

Nissan Silvia K's 1800cc:

Win the Beginner FR Challenge series to unlock the Nissan Silvia K's 1800cc.

Silver Honda CRX Del Sol SiR:

Win the Beginner Race of NA Sports series to unlock Silver Honda CRX Del Sol SiR.

Bonus tracks:

Successfully complete each tier of tracks in arcade mode on any difficulty setting to unlock the next tier of tracks:

Tier 1:

Super Speedway, Midfield Raceway, Smokey Mountain, Swiss Alps, Trial Mountain, Midfield Raceway II.

Tier 2:

Smokey Mountain II, Tokyo R246, Grand Valley Speedway, Laguna Seca Raceway, Rome Circuit, Tahiti Circuit.

Tier 3:

Swiss Alps II, Trial Mountain II, Deep Forest Raceway II, Special Stage Route 5, Seattle Circuit, Test Course.

Don't stop here... Check out our complete collection of Gran Turismo 3: A-Spec cheats