You can't. You can only use cars customized with career to use them in career.
Go to Career mode, play all the races and win.
In career mode, you can only have 1 car.In customization mode, you can have as many cars as you want.
To get them u have to complete underground mode. there is no cheat that i have found.
Their is no other way ! Beat the game lazy !
Its like cars that are already modified and customized that you can't use in carrier mode but can use in quick races
you have to go to you reward cards and do what it says
There is not one
no, you can also play career mode but there is no arcade mode. For best gaming experience, you have to play it online.
'unlockall things on the code entry on the career mode
you cant get it in career mode
beat the whole game
yes, in the career mode there is an option where you can "free roam" the city of seacrest.