The following are known Action Replay Codes for Cruis’n USA on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Always Manual Gearbox
801502130001

Always Place 1st
8015025b0001

Unlimited Time
80150a680095
8015097d0095

Always Place 1st
8015034b0001
8015022b0001

Unlimited Time
8015094d0045