CART car:
Enter Downforce as a career name.

All cars:

Enter Loaded as a career name.

All tracks:

Enter Road Sweeps or Road Sweep as a career
name.

Low gravity:

Enter Feather as a career name.

Disable HUD:

Enter No Dogs as a career name.

Slow motion:

Enter Poke as a career name.

Slow CPU cars:

Enter Walk It as a career name.

Extreme difficulty:

Enter Road Trip as a career name.

Pilbeam LMP:

Enter Swallow as a career name.