The following are known GameShark Codes for Car and Driver Presents: Grand Tour Racing ’98 on Sony Playstation (PS1).
These codes were also known as Action Replay Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

• 99 Points – Team Xu (Season Mode)
  80026E51 0063
• 99 Points – Team Rossi (Season Mode)
  80026E50 0063
• 99 Points – Team Morgen (Season Mode)
  80026E4F 0063
• 99 Points – Team Ahmed (Season Mode)
  80026E4E 0063
• 99 Points – Team Baptiste (Season Mode)
  80026E55 0063
• 99 Points – Team Ivanov (Season Mode)
  80026E54 0063
• 99 Points – Team Roberts (Season Mode)
  80026E53 0063
• 99 Points – Team Lumier (Season Mode)
  80026E52 0063
• Have All Levels
  50003002 0000
  80026934 0007
  Note: Cheat Device 2.2 or Higher Needed