Since the latest » Patch v1.1 for Need for Speed ProStreet, unfortunately some » Cheats don’t work anymore. Now there is handy tool from SAAM007, which unlocks the following four new cheatcodes:

SAAM-CE - open 5 cars - collectors edition (same as COLLECTORSED v1.0)
SAAM-BP1 - open 7 cars - booster pack 1
SAAM-BP2 - open 7 cars - booster pack 2
SAAM-UNL - same as UNLOCKALLTHINGS v1.0

You can find the tool in our download-section.