he must be a mustang fan. i think i remember him making some kind of mustang reference in another song. also i was at the philadelphia car show this year, and they had a cobra shelby 500 there that was all done up and listed as nelly's car. If this is so, he gets my vote...the dude can have any car he wants and hes a stang fan.
I heard him say he started liking the 5.0 because of the movie menace 2 society. So every since then he always wanted a 5.0 and hence the title of his new album 5.0. He's alright with me and i like the new song.