- For other iterations of the race in the series, see Grand Valley 300 km.
- "伝統の300キロ。高速テクニカルコースをこの手に。 (The traditional 300km. Take on the high-speed technical course.)"
- ―In-game description (NTSC-J version)
- "The legendary 300-km run. Master this high-speed technical course."
- ―In-game description (NTSC-U version)
The Grand Valley 300 km is an endurance race in Gran Turismo 3: A-Spec. It is a 60-lap race running around the very twisty Grand Valley Speedway.
Requirements[]
- International A license
Opponent Cars[]
| Image | Car | Power (BHP) | Weight (kg) | Notes |
|---|---|---|---|---|
 |
Honda ARTA NSX (JGTC) '00 | 481 | 1150 | |
 |
Honda Castrol MUGEN NSX (JGTC) '00 | 481 | 1150 | |
 |
Honda RAYBRIG NSX (JGTC) '00 | 481 | 1150 | |
 |
Lamborghini NOMAD Diablo GT-1 (JGTC) '00 | 591 | 1200 | Available in the NTSC-J version only |
 |
Nissan CALSONIC Skyline (JGTC) '00 | 469 | 1100 | |
 |
Nissan LOCTITE ZEXEL GT-R (JGTC) '00 | 469 | 1100 | |
 |
Nissan PENNZOIL Nismo GT-R (JGTC) '99 | 498 | 1200 | |
 |
Toyota Castrol TOM's SUPRA (JGTC) '00 | 464 | 1100 | |
 |
Toyota DENSO SARD SUPRA GT (JGTC) '00 | 464 | 1100 |
Prizes[]
Prize Money[]
- 1st: Cr. 400,000
- 2nd: Cr. 100,000
- 3rd: Cr. 85,000
- 4th: Cr. 65,000
- 5th: Cr. 40,000
- 6th: Cr. 11,000
Prize Cars[]
Winning this event will award you with one of the following:
- F090/S (NTSC)
