When you start up a game, the User details are saved to the profile. So My save is "Nutter", now If I was to copy that save to your file "Vokruk", it won't work because the profiles are different. Much like what Jay has mentioned.
Now the part I'm not sure of is if this save file contains the profile name, or a serial code that is unique and randomly generated. This may mean that you could create 100 accounts, all with the same name, but each one may have a different serial codes.
So what I'm going to say is be prepared for the worse. This will sound harsh, but you may have to restart Burnout all over again.
