2% OF ALL ROAD TRAFFIC ACCIDENTS CAN BE ATTRIBUTED TO VEHICLE DEFECTS AND FAULTS Given that the National average age of UK vehicles is 8 years, it's no surprise that faults such as tyre blow outs, broken lights and smearing window wipers are causing accidents across the UK. ONLY 44% OF PEOPLE INSPECT THEIR CAR PRIOR TO TRAVELLING FOR WORK.. and of that 44% who do complete checks... &bul..