ENDOFFERS           All Championship Cars
LEMANSOFFERS        All Leman cars
ALLTHECARSNOW       All Arcade cars 
ALLTRACKSPLEASE     All Arcade tracks
19BMW99             99 BMW LMP in training mode
1999AUDI            99 Audi Roadster in training mode
TOYOTA1999          99 Toyota in training mode
DEBORACING          Deborah in training mode
DEBORALM            Deborah in run mode

Thanks to Revolution reader Kelly McClaskey!