Why is the guy on the bike breathing so fucking hard? Adrenaline dump?
edit: After watching the whole thing, guy on the bike escalated the situation, threatened the guy and then thew the first punch. He claims he isn't 'proud of what he did' but he obviously is or he wouldn't have posted it. He wouldn't have posted the video if he was the one who endded up getting beat up.
I drive for a living and I have people do way more annoying shit to me on a daily basis but I just ignore it. As evidenced by the mexican guy when he got out the car, the people who drive like that are sad people and aren't worth engaging.