The best and worst cars to own

Each year, What Car? magazine joins forces with market researchers at US firm JD Power and Associates to produce a wide-ranging survey of drivers' satisfaction with their cars.

This year, JD Power surveyed 16,000 UK car motorists, who together own 116 different models of car aged between one and three years old. Owners rated their cars on 66 criteria, which were then combined to deliver an overall score. Points given for reliability, performance, servicing and running costs are shown as a final percentage score.