I got these off of a few websites.

SPEEDFREAK: All Cars Have Nitro
NIGHTPROWLER: Always Midnight
FLYINGFISH: Boats Fly
BUBBLECARS: Cars Float Away When Hit
STATEOFEMERGENCY: Chaos Mode
BLUESUEDESHOES: Elvis is Everywhere
SPEEDITUP: Faster Gameplay
CRAZYTOWN: Funhouse Theme
ONLYHOMIESALLOWED: Gang Members Everywhere
BIFBUZZ: Gangs Control the Streets
ROCKETMAN: Have Jetpack
PROFESSIONALKILLER: Hitman In All Weapon Stats
CJPHONEHOME: Huge Bunny Hop
FULLCLIP: Infinite Ammo, No Reload
WHEELSONLYPLEASE: Invisible car
NATURALTALENT: Max All Vehicle Skill Stats
BUFFMEUP: Max Muscle
WORSHIPME: Max Respect...