Latest: Insurers deny fall in motor insurance is down to EU 'cartel-busters'

Latest: Insurers are denying they have dropped their prices because of a clampdown on cartels.

Update - 10.19am: Insurers are denying they have dropped their prices because of a clampdown on cartels.

Car insurance policies are down by 14% - the biggest decrease since a surge in bills three years ago.