Movie with two brothers (i think) one of them goes fighting, and the other loves a black girl

In this movie the main Actor (white) got long hair and his wanna be girlfriend is Black. His brother lives with him and goes Fighting to earn money.
I remember one scene where the two brothers in parked cars and one of them press the accelerator and enjoy the sound of the motor engine.
An other scene between the main actor and the girl he loves (his girlfriend) was on a Bridge .
The main actor worked in an industrial Factory of steel or something.
Plz help me find this wonderful movie