To unlock these cars, you have to progress through career mode in San Diego.
Car
How to unlock
Chevy 57 Bel Air
Beat City Tournament/57 Bel Air.
Chrysler 300C Dub Edition
Beat Balboa Tournament/300C Dub Edition.
Class C Vechicles
Progress in Career mode.
Hotmatch Chuevto
Beat Phil in Career mode.
Lexus IS300
Beat City Tournament/IS300.
Mercedes Benz SL500 AMG Dub Edition
Beat San Diego Dub Tournament/SL500 AMG.
Glitch list (some online)
Atlanta#1: Get on the highway and look for a spot in the wall that looks smeared. get on 2 wheels and drive through. It will take a few tries but its possible. (easier with motorcycle)
online#1. You'll need 6 or more people in your game in order to do this. The first thing you need to do is restart the game but hit X 4 times really fast and if u did it right, everyone (but you) will fly into the air.
NOTE if u are using hydrolics and in the air and the glitch happens, you wont fly.
Online Tokyo#1: Turn sideways into the garage and go fast and you will go through the garage.
Online Atlanta#1: Go to the mall. Go on the top floor and (make sure you have a car with hydrolics) hop your front onto the wall. get a buddy to push you up with your back up and front on the wall. you will respawn in the air.
No San Deigo or Detroit glitches that I know of yet. Ill post them when I know about them.
Japanese Glitch
Go tokyo in arcade mode.thenfind the speedway garage(your garage in tokyo)try ramming the door but make sure your in 2 player any vehicle you want then burnout go left while burnouting you will be inside the garage try to bump any thing the wall the lift etc. you will be through it to get out just find a wall go through it(at sides only. g.luck
No Damage
Go to options, then Cheat Codes, then enter "ontheroad"
No Damage
Go to cheats menu and put in the word ontheroad.
Unlock Chevy Cobalt SS
Beat the Unbeatable Street Racers tournament in Tokyo.
Unlock Gemballa F355
Beat the By Invitation Only tournament in Tokyo.
Unlock Hotmatch Chingon
Beat the Choppers Of America tournament in Tokyo.
Unlock Hummer H3T
Win the Big Playas tournament.
Unlock Nissan Sport Concept
Win the Class C Vehicles Only tournament.
Unlock Paul Smart Sports Bike
Win the Original Riders tournament.
Unlock Tokyo Police Car
Win all tournaments in Tokyo.
Various Codes
At the cheatcode menu, enter one of the following codes:
Add $1 to career money total - kubmir
Unlock Argo special move - dfens
Unlock All cities in arcade mode - roadtrip or crosscountry
Unlock Bunny head - getheadl
Unlock Chrome body - haveyouseenthisboy
Unlock Faster pedestrians - urbansprawl
Unlock Flaming head - trythisathome
Unlock Increase car mass in arcade mode - hyperagro
Unlock Pumpkin head - getheadk
Unlock Roar special move - ro4r or Rjnr
Unlock Snowman head - getheadm
Unlock Skull head - getheadn
Unlock Yellow smile head - getheadj
Unlock Zone special move - allin
