The following are known Action Replay Codes for Vanishing Point on SEGA Dreamcast (Dreamcast). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

Open All Secret Cars
8003CE96 FFFF

Open Movies etc.
8003CEAE FFFF

Open All Normal Cars
8003CE94 FFFF

Open All Circuits
8003CE9E FFFF
8003CEA0 FFFF
8003CEA2 FFFF
8003CEA4 FFFF

All challenges
5336378D
606FB041
4070504D

Timer always zero
30010CC6 0000

All Stunt challenges (NEW!)
50000F04 0000
3003FE33 0064

Start at lap 2
2DF463AA
C0703041
2DF763AA
00000201

Open Tune Up Shop
8003CEAD FFFF

All Heats completed
50001002 0000
8003CEB0 0707

All heats completed
3470648D
E070D041
9721AE1E

everything Unlocked
7335D3C8 0000FFFF AAEB515B 0000FFFF 44AA1F03 0000FFFF 1C54165B 0000FFFF
44921F03
0000FFFF
EA9B585E
000000FF
736DD3C8
0000FFFF
CB03A732
00000003

Unlock Secrets
8003CEAA FFFF

Timer stopped
335A2743
00703040
33592743
00000000

Start at lap 3
2DF463AA
C0703041
2DF763AA
00000102