Lemans 24H Cheat Codes for Arcade

Drive Sonic Racer
Insert coin(s)
Press (and hold) the break pedal down.
Push Start.
Select a course
At the car selection screen, highlight "Nismo", the vehicle on the far left.
Hold Start + Zoom-in while pushing down on the accelerator.
Release the brake pedal.

Drive King Car
Insert coin(s)
Press (and hold) the break pedal down.
Push Start.
Select a course
At the car selection screen, highlight "Nismo", the vehicle on the far left.
Hold Zoom-in + Zoom-out while pushing down on the accelerator.
Release the brake pedal.