Asked over 4 years ago in Cheats & Codes
Games: Need for Speed: ProStreet (Wii), Need for Speed: ProStreet (PS3), Need for Speed: ProStreet (X360)
Tags: hidden cars
The link below should answer your question, but its only for the PC version, in the other versions of the game this cannot be done.http://forum.nfsunlimited.net/viewtopic.php?f=2&t=15413
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