Government urged to take action as CMA report finds retailers have not passed on the falling cost of energy

UK motorists are paying more than they should for petrol and diesel even as global energy market prices have fallen in recent months, the competition watchdog has warned.

The Competition and Markets Authority (CMA) repeated its call for the new government to take action “as soon as possible” to end the “persistent” overcharging, six months after it found that motorists paid £1.6bn more than they should have last year alone.