So, kinda dumb idea. If I remember correctly, there was a factory new buggy mod, and for some reason it had BMW logos on it. After playing NFS Most Wanted I for no reason though to replace the buggy with the BMW M3 E46 GTR.
In order to win the bounty, you should fulfil the following requirements.
One of three corpuses (Most Wanted 2005, Carbon or Most Wanted 2015)