Stupid Opponents:
D01B3A7E 001B
80093BC8 0000

Only One Lap To Race (Note 1):
D00B6700 0000
800B6700 0002

Lots Of Money:
D009B876 0000
8009B876 7FFF

Have All Licences:
D009E3C4 0000
8009E3C4 0303
D009E3C6 0000
8009E3C6 0303
D009E3C8 0000
8009E3C8 0303
D009E3CA 0000
8009E3CA 0303
D009E3CC 0000
8009E3CC 0303
D009E3CE 0000
8009E3CE 0303
D009E3D0 0000
8009E3D0 0303
D009E3D2 0000
8009E3D2 0303
D009E3D4 0000
8009E3D4 0303
D009E3D6 0000
8009E3D6 0303
D009E3D8 0000
8009E3D8 0303
D009E3DA 0000
8009E3DA 0303

GT LEAGUE

Have All Gold Cups & Open GT Hi Fi Mode:
D009F8DC 0000
8009F8DC 0101
D009F8DE 0000
8009F8DE 0101

Have Gold Cups:
D009F8E0 0000
8009F8E0 0101
D009AADE 4000
8009F8E2 0101
D009F8E4 0000
8009F8E4 0101
D009F8EA 0000
8009F8EA 0101
D009F8EC 0000
8009F8EC 0101
D009F8EE 0000
8009F8EE 0101
D009F8F0 0000
8009F8F0 0101

Have All Goodies:
D01FFAE2 8007
D0081B48 0000
80081B48 0404
D01FFAE2 8007
D0081B4A 0000
80081B4A 0404
D01FFAE2 8007
D0081B4C 0000
80081B4C 0404
D01FFAE2 8007
D0081B4E 0000
80081B4E 0404
D01FFAE2 8007
D0081B50 0000
80081B50 0404
D01FFAE2 8007
D0081B52 0000
80081B52 0404
D01FFAE2 8007
D0081B54 0000
80081B54 0404
D01FFAE2 8007
D0081B56 0000
80081B56 0404
D01FFAE2 8007
D0081B58 0000
80081B58 0404
D01FFAE2 8007
D0081B5A 0000
80081B5A 0404
D01FFAE2 8007
D0081B5C 0000
80081B5C 0404
D01FFAE2 8007
D0081B5E 0000
80081B5E 0404
D01FFAE2 8007
D0081B60 0000
80081B60 0404
D01FFAE2 8007
D0081B62 0000
80081B62 0404
D01FFAE2 8007
D0081B64 0000
80081B64 0404
D01FFAE2 8007
D0081B66 0000
80081B66 0404

Note 1: This code will finish the race as you pass the Start line in all 2-lap races. If you try to race a 3-lap race, you will only have one lap to finish.