The Supercar Festival is an event in the Professional hall of Gran Turismo 4. It is an event that is limited to production cars with 493 HP or over with normal or sports tyres.
- A dream race where super high-level cars compete for dominance.
- Cars: Unmodified Cars of at least 493 HP.
- Tire restrictions: Normal or Sports tires only.
- License requirements: iA License required.
- Seoul Central - 8 Laps
- Fuji Speedway '90s - 6 Laps
- New York - 6 Laps
- Midfield Raceway (reverse) - 6 Laps
- Infineon Raceway (Sports Car Course) - 6 Laps
- 1st: Cr. 15,000
- 2nd: Cr. 7,500
- 3rd: Cr. 5,000
- 4th: Cr. 4,000
- 5th: Cr. 1,500
- 6th: Cr. 800