A motorist paralysed in a horrific car accident when driving on part  worn tyres is hoping his story will urge other drivers to think twice  about which tyres they choose.
 Keith Johnston, 41 from Tyne and Wear suffered terrible life-changing  injuries in the smash earlier this year and is now permanently  paralysed from the top of his chest down, only able to move his arms and  neck.
 Apart from the severe physical injuries he has also experienced  damaging emotional scars, often enduring nightmarish flashbacks to the  fateful day on 8th February when he was driving his Renault Megane  Scenic near Carlisle.
 With temperatures well below freezing at the time of the accident,  when going round a bend the car lost control, bumped across the road and  rolled down a ditch. However, there was one miracle – the four  passengers in the car escaped uninjured.
 All of the tyres on the car had recently been purchased in a  part-worn condition and a police investigation blamed them as a major  contributory factor in the accident.