ALLTHEBUTTONS   - all cars 
GREATNEWS        - all tracks
MINIME           - Mini Cooper S
TURNONTHEICE     - car stereo
MORRISMODE       - Escort mk1
SHINYBUTTONS     - Cars go all shiny
GOFASTERSTRIPES  - Faster cars?
CURRYFORME       - Turbo boost
NUTTYNETS        - Aggressive cars
BOUNCYBOUNCY     - Bouncy collisions
WHEELYBIG        - Monster truck wheels 
BOINGBOINGBOING  - Bouncer mode
WAWEYOURLEFTS    - Mirrored tracks
EATTHIS          - Press the handbrake to shoot fireballs in arcade mode.
GARYWILDASS      - Ford Puma
EVILEVO          - Lancer road 
LETMEWIN         - open all game options

Thanks to Revolution readers PAU & TAU , Leles is Kaunas, Rytis Petrauskas - nuvepelis, mn mn and Ville Kurkela!