Media playback is unsupported on your device Media caption The girls' father released the footage to highlight the problem of dangerous driving and ensure no-one else suffered as they had

A driving instructor who left two young sisters paralysed after a "road rage" crash in Northamptonshire has been jailed for four-and-a-half years.

Andrew Nay, 39, crashed his Land Rover into the girls' family car as he made a right turn across oncoming traffic on the A509 near Wellingborough.

Katrina Raiba, now eight, and her sister Karlina, six, were left paralysed from the waist down.

The girls' parents said they would "never be able to forgive" Nay.

Live: Reaction to sentencing of Andrew Nay

Image copyright Slater and Gordon Image caption Katrina (left) and Karlina's parents said they kept asking "when will we start feeling our legs again?"

Image copyright PA Image caption Former Jaguar Land Rover manager Andrew Nay, 39, left the two young sisters paralysed after smashing his company 4x4 into their father's car during a road rage chase

Northampton Crown Court was told Nay, a Jaguar Land Rover manager and off-road driving instructor, was tailgating and "bullying" a woman who had been driving a Mazda.

To get away from him during his pursuit in October last year, she safely turned right onto the B547 towards Little Harrowden.

Nay, who was seen laughing with his male passenger, undertook a Mercedes and then, in an attempt to follow the Mazda, made an "absolutely ridiculous" turn, the court heard.

He hit the family's Vauxhall Signum that was travelling along the A509 in the opposite direction.

The girls' parents, Roberts Raibais and Renate Raiba, released a statement saying: "Andrew Nay's reckless actions had devastating consequences for our two beautiful daughters.

Image copyright Slater and Gordon Image caption The girls and their parents (pictured before the crash), who said they would "never be able to forgive" Andrew Nay

Image copyright PA Image caption Katrina and Karlina Raiba (l to r) who were left paralysed after the car crash

"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."

Nay, from Weldon, Corby, admitted four counts of causing serious injury by dangerous driving, but denied he had been chasing the Mazda prior to the crash.

Judge Adrienne Lucking QC said: "This was a prolonged, persistent and deliberate course of very bad driving.

"No sentence I can pass will ever feel like enough for this family."

The judge told Nay his account of events had been "incredible and inconsistent".

Sgt Tony Hopkins, of the Serious Collision Investigation Unit in Northamptonshire, said: "This is probably one of the most tragic cases that I think I've had to deal with in my career to date.

"There is no end for the family, this will go on for years and this will affect them for years."

He added: "I'm pleased to see that the judge has been able to see through Mr Nay's story, and has been able to see what the witnesses have evidenced to us over the few months, to highlight how long this incident actually went on for."

Jaguar Land Rover' said in a statement: "We are deeply saddened by this terrible incident and our thoughts are with the Raiba family. We can confirm that Andrew Nay is no longer an employee of Jaguar Land Rover."