I had the game for Xbox, got pissed when I was at Blacklist Racer 3, broke my xbox .... recently got an Xbox360 and NFS and I have a question about the markers. Everytime I beat a blacklister, I chose one of the ? markers and then the Performance upgrade and my thinking is that at the end, whatever car i'm most satisfied with, i'm going to dump all the unique performance parts into that car and kick Razor's ass. 1. is this a good idea? and 2. I have one of everything I believe and I even have 2 of some of them, will I be able to use both of them on the same car and is using say 2 Unique Supercharger upgrades going to do anything more than only having the 1 Unique Supercharger upgrade? Thanks!