No catching up on races:
     Enter C-VHARD as a profile name.

Slower opponents:
     Enter C-EASY as a profile name.

All cars in garage pimped:
     Press Up, Down, Left, Right, B, X, A, Y, Up, Down, Left, Right.

Additional $5,000:
     Press Up, Down, Left, Right, B, Left, A, Up.

Disable police:
     Press Up, Down, Left, Right, A, X, Right, Y, Left.

Always first place in street races and success in acquires or retributions:
     Press Up, Down, Left, Right, A, Left, B, Up.

All traffic at full speed:
     Press Up, Down, Left, Right, X, Right, Circle, Left.

Unlimited nitro:
     Press Up, Down, Left, Right, X, Up, Down, B, Up.