The bloody violence was sparked when a lone driver in a Silver Vauxhall Astra allegedly cut in front of a white transit van - narrowly avoiding a collision. Video footage filmed on a mobile phone shows a raging passenger landing six heavy blows as he leans through the half-open window of the Astra.He can be seen pushing against the door of the vehicle to prevent the driver from escaping. The Astra driver eventually forces open his car door which swings forward and slams the attacker into the side of the van parked next to it in the middle of the road. He hastily jumps out of his car and chases after the unnamed passenger, who is wearing a blue polo shirt and jeans.