The nfs5demoGT1twk.zip file you have requested: Tools and Utilities / Utilities / NFS5 Online Demo Car Hack - 1.04kb is not available. Perhaps try browsing all files for the game Need for Speed: Porsche Unleashed and upload any files you want to share or are missing. This is the only information we could locate:
NFS5 Demo Gt1 Tweak
Hacked by T.J. Patel
*replaces 911 car performance with gt1 car performance in online demo game
*creates backups of any files u replace or delete if you want to go back to the original
1. Goto nfs5 demo direc a new hack for the NFS5 Online Demo which allows you to make the Porsche 911 go about twice as fast as the GT1.