Need for Speed Underground Rivals
Boss Cars
In some race events that says Boss Race in the event description, you can win that Boss's car by beating the event on Gold difficulty. When you win a Boss car, it appears in the Pocket Garage and you can race it in any game event.
Submitted by Hovey.
Game Description:
Hit the neon streets of Need for Speed: Underground Rivals in pursuit of total ownership of the tuner racing scene. In this first-ever Need for Speed title for the PSP, customise and build the ultimate tuner on four rims then take it into the underground world of street racing. With tons of tuning options, a variety of game modes, and the circuit's most sought-after cars, Need for Speed: Underground Rivals delivers an unrivalled tuner experience... in the palm of your hand.
The database at Game Oak contains more information regarding Need for Speed Underground Rivals for Sony PlayStation Portable.