This horrifying footage shows the moment two young sisters were left paralysed when a Jaguar Land Rover manager pulled in front of their family car during a road rage chase.

Katrina and Karlina Raiba, aged five and eight, suffered life-changing injuries when Andrew Nay, 39, made an 'absolutely ridiculous' right-hand turn across oncoming traffic.

The court heard he was tailgating and 'bullying' a woman in a Mazda people carrier moments before the crash on the A509 near Wellingborough, Northamptonshire, in October last year.

Sisters Katrina and Karlina Raiba, aged five and eight, right, were left paralysed after Andrew Nay, left, crashed into their family car on the A509 near Wellingborough, Northamptonshire, in October last year

Video captured on the family's dashcam captures Nay's white Land Rover Discovery 3 recklessly pulling out into their lane, giving father Roberts Raibais no time to swerve out of the way.

Mr Raibais and his wife Renate Raiba, who suffered broken bones in the accident, said Nay had 'robbed' their daughters of their active childhoods.

Their lawyer added the girls will now face a 'lifetime of profound disability'.

Nay, of Corby, Northamptonshire, admitted four counts of causing serious injury by dangerous driving but denied chasing the Mazda before hitting the victims' Vauxhall Signum.

Northampton Crown Court heard Nay, who worked as an off-road instructor for Land Rover, had been chasing the Mazda because he believed the driver had cut him up.

Giving evidence, the female Mazda driver said Nay was aggressively tailgating and 'bullying' her as he followed her vehicle.

Matthew Rowcliffe, prosecuting, said the woman admitted putting her hand out the window and 'sticking her middle finger up' at Nay as he was 'less than a car length' away from her vehicle.

The court heard the woman overtook a Mercedes to put a car between the two vehicles but was not able to make much further progress up the road due to heavy traffic.

Road rage: Nay had been chasing the driver of a Mazda people carrier when he made the 'ridiculous' turn

Reckless manoeuvre: Nay's white Land Rover Discovery 3 is seen pulling out in front of oncoming traffic

Seconds from disaster: The company 4x4 pulled in front of the family vehicle while making a right-turn

Moment of impact: Nay drove in front of the family car, giving the driver no time to swerve out of the way

Carnage: The video captures what appears to be airbags inflating when the 4x4 smashed into the family car

Fraser Hopes, the driver of the Mercedes, said Nay's Land Rover then began to tailgate him and in his rear view mirror he could see two men 'smiling' and 'having a laugh'.

Dashcam footage shows Nay later pulling out of his lane as he tried to make a right-turn, crashing into the family car.

Witness Leslie Miller, said of the manoeuvre: 'It was absolutely ridiculous. There was no reason why it couldn't have waited.'

In evidence, Nay denied chasing the Mazda, saying he had noticed 'nothing in particular' during his journey and was turning towards a garden centre in his car when he crashed.

But Judge Adrienne Lucking QC rejected Nay's testimony, ruling that he crashed while chasing the Mazda.

Describing the evidence against Nay as overwhelming, Judge Lucking said the driver had 'harried' the people carrier after being prevented from leaving a roundabout on the A14.

The judge told Nay: 'I have heard evidence from a series of witnesses travelling in the same direction as the Land Rover.

'In each case their evidence was given in measured terms, without exaggeration. By contrast I found the defendant's evidence unconvincing and inconsistent.'

Devastated: Parents Roberts Raibais and Renate Raiba, pictured, suffered broken bones in the crash

After the ruling, parents Roberts Raibais and Renate Raiba, said their lives had been 'completely shattered' by Nay's actions and that no sentence would be enough.

They said 'Andrew Nay's reckless actions had devastating consequences for our two beautiful daughters.

'Katrina and Karlina were happy, active children and he has robbed them of that. We will never be able to forgive him.

'Every day they ask 'when will we start feeling our legs again?' They think it's going to get better and it's too hard to tell them.'

Representing the family, Richard Langton, a serious injury specialist from law firm Slater and Gordon, added: 'This is one of the most heartbreaking cases I have ever had to deal with.

'Nay was an experienced driver, yet his complete disregard for other road users has left two innocent children paralysed from the waist down.

'Because of him Katrina and Karlina face a lifetime of profound disability.'