Police are hunting for a violent white van passenger filmed beating a driver around the head through his car window before fighting him in the road.
Footage of the assault was filmed by another driver stuck behind the silver Vauxhall Astra and the Ford Transit in Swindon on Saturday.
The violence was sparked when the lone motorist was almost involved in a collision with the white van at a set of traffic lights.
The raging passenger is shown jumping out of the van and landing six blows through the half-open window of the Astra.
The attacker can also be seen pushing against the door of the vehicle to prevent the driver from fighting back.
Shocking: Police are hunting for a man violent filmed beating an Astra driver around the head through his car window (pictured)
Assault: The attacker then started fighting him in the street in a vicious beating caught on camera
The Astra driver manages to force 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 jumps out of his car and goes after the unnamed passenger, who is wearing a blue polo shirt and jeans.
But by this time the first attacker has been joined by the burly driver of the white transit van, swinging what appears to be a surveyor's wheel.
He then uses the tool as a weapon to strike the Astra driver who retreats from the attacking pair.
The confrontation then moves towards a nearby kerb where the Astra driver is forced back into a bush before he is hit with a left and right hook.
Fracas: The white van's driver also took part and was swinging a surveyor's wheel as a weapon
The fight ends and the shaken Astra driver can be seen remonstrating with the two men who have assaulted him.
Police say they are aware of the incident which took place shortly after 2.30pm on Saturday in Garrard Way near the Greenbridge Retail Park in Swindon, Wil tshire.
A spokesman said: 'We are aware of this incident and will be investigating. We'd like to hear from any witnesses.
'Call 101 or Crimestoppers on 0800 555 111 where you can leave information anonymously if preferred.'
It's believed the silver Astra had got in the way of the white transit van as it came down Garrard Way in the direction of Drakes Way.
This caused the white van to stop and led to words being exchanged between those in the van and the driver of the car.
