Grand Theft Auto 5 contains a variety of vehicles, but sometimes you'll wind up stranded in the middle of nowhere. Don't panic. Simply enter these codes to spawn the Rapid GT.
On PlayStation 3, press R2, L1, Circle, Right, L1, R1, Right, Left, Circle, R2
On Xbox 360, press RT, LB, B, Right, LB, RB, Right, Left, B, RT.
For more, read Prima's free GTA 5 guide.