Probably because Americans are the wigger/boy-racer/ricer of the world:

Yo why you hatin on my Cavalier?
is it jealousy ?
is it my attitude ?
is it my wealth ?
is it that i'll race people that nobody else will race? like that soccer mom in her mini van at the red light with her two dogs in the back ?
is it cause i tell some people the way it is ? straight up yo ?
I just don't get it. Why yall be hatin on me?