Various skins:
Skins At the start of the game, for your License plate type in:
J1MM: Zombie
TATS: Glowing tattoo chick
P1MP: Pimp
HAWG: Biker Dude
JASS: A donkey that's blindfolded & smoking
MNKY: A bald dude with tattoos
B1G1: That big black lady who's your boss
ROSA: The chick partner
HURT: M3 The chick partner in Lingerie
TFAN: Fat black guy
FATT: That old cop that talks the whole game
PHAM: Dude all covered with blood
HARA: Some dude
BRUZ: Some boxer dude
MRFU: Some pimped out lookin dude
B00Z: (those are zeros, not O's) A chewy looking homeless guy
5WAT: (thats a five) A SWAT team dude
FUZZ: Cop with Shades
M1K3: Dude in a ski mask
AWYEAH: Afro guy

Change color of car:
hold L1 and R1 when putting in licenes plate press up to change color of car.