Horrifying dashcam footage shows the moment a hulking 6ft 7ins road rage driver leapt from his truck then attacked a terrified motorist 'because he made a rude gesture at him' after a near-miss at a roundabout.

Truck driver Stephen Carr, 44, was infuriated after he almost collided with another vehicle in Barnsley, South Yorkshire.

But rather than letting it go, the furious Carr tailgated his victim until he finally pulled over, then forced traffic to stall as he launched his blistering attack.

The shocking brutality was caught on the dashcam of the car behind, and led to Carr being jailed for 16 months for assault, handed a 20-month driving ban and ordered to pay his victim £140.

Police said it was one of the most troubling road rage attacks they had seen in recent years.

Stephen Carr (in white t-shirt above) pulled the driver out of his vehicle and attacked him, knocking him to the floor with a vicious punch

The driver who recorded the footage said it was even more disturbing as his wife got out to try and stop the violence while he called the emergency services - yet everyone ignored her.

She was screaming for help but other motorists simply drove on by or sat in traffic watching the violence unfold on November 19 last year.

The driver who recorded the footage said: 'His victim had apparently given him the w***** signal as he went round a roundabout.

'When we eventually caught up with him we couldn't believe what happened.

'It was said to me by a long serving member of South Yorkshire Police that having viewed it, this is the worst incident of road rage ever captured on video.'

He said he believed it was a 'totally unprovoked and sustained attack by by an aggressive man who believes that he's above the law'.

He added: 'My wife was the only person initially to intervene and attempt to stop the assault, many more members of the public simply chose to slow down in order to rubberneck and then drive away.'

Wearing overalls, 6ft 7ins Carr stops his truck and gets out to kick the victim's vehicle before he opens the driver's door.

The victim resists his attempts to drag him onto the road before the man's wife comes into view. She approaches Carr but has to back off as he screams at her.

He dragged the man to the ground and rained down punches on him as other drivers drove past

Carr then returns and drags the victim out of his Nissan Micra by his leg before kicking and punching him as he lies on the ground.

He then returns for a second time to push him to the ground as dozens of other cars simply drive by.

Eventually a roofing contractor does stop and has it out with Carr.

The muscled thug then returns to scream at the woman who initially tried to intervene. He seems to suggest that the victim called him a 'w*****' at the previous roundabout.

Carr, of Grimethorpe, was jailed for 16 months and handed a 20-month driving ban after he was convicted of assault occasioning actual bodily harm at Sheffield Crown Court on November 27.

He was also ordered to pay his victim £140.

He was also initially charged with aggravated street robbery after he allegedly took the victim's mobile phone during the attack.

One driver tried to stop Carr and he told them that his victim had made a rude gesture at him

But the charge was later dropped as part of a plea bargain by solicitors acting on his behalf.

The man who recorded the dashcam footage and then handed it to the police added: 'We were told that had it not been for the footage he could have denied it.

'I think it's time things like that were shown. It's an example of my wife getting out of the car and everyone else just sitting in their little cocoons and driving past.

'She was pleading with people to stop and help and I think there is this inherent lack of public spirit.

'There was a van behind us and two guys in it were just stood there watching her plead for help.

'It was infuriating for her. The level of anger was totally unwarranted.'