During the game, type these in for a variety of special occurrences:
BIGBOTTOM Trash bodywork
BOYSFROMTHEBUSH Grip-o-matic tires
BUYOURNEXTGAME Jelly suspension
CHICKENFODDER Bouncy
FUNNYJAM Turbo pedestrians
GIVEMELARD Loads of money
GOOGLEPLEX Underwater ability
HAMSTERSEX Blind pedestrians
IGLOOFUN Hot rod
IHAVESOMESPAM Lunar gravity
ILOVENOBBY Show pedestrians on map
INTHELOFT Drugs
ISLANDRULES Vesuvian corpses
MOOSEONTHELOOSE Pinball mode
NAUGHTYTORTY Respawn pedestrians
RABBITDREAMER Gravity from Jupiter
RUSSFORMARIO Pedestrian electro-ray
SMALLUDDERS Giant pedestrians
SPAMFOREST Instant handbrake
SPAMFRITTER Free repairs
SPAMSPAMSPAMSPAM Pedestrians can't move (rabbit/headlights ╨ that kind of thing)
ISUPERHOOPS Explosive pedestrians
TRAMSARESUPER Pedestrian harvest
Also, holding down Z on the start line allows you to pull away early. Unfortunately, you get a head start but will have 1000 credits deducted ╨ but you can make up for this by killing the marshal. Remember you can also use the Z key for a wheel spin.