Women's car insurance to cost £360 more thanks to new EU ruling Treasury analysis has shown that women will see their premiums increase by 24pc, while men will only see a 9pc reduction in costs as a result of the EU ruling. The AA said this latest increase came on top of steep rises in the cost of car insurance. Figures from the motoring organisation show that over the past five year the cost of car insurance has more than doubled. In 2008 the average comprehensive policy cost £481 - in January this year the same policy cost £971. Experts say the overall cost to UK customers of the ECJ's judgment - which was based on a case brought by a consumer group in Belgium - will be almost £1bn. Motoring groups warned that the ruling could lead to more deaths on the roads if young men benefiting from lower premiums buy faster cars. Insurance companies said women could benefit from lower insurance premiums if they opted for "black box" technology. Here insurance premiums are based on driving habits - how often people drive, what time of day they drive, whether they break speed limits etc. Both men and women who drive safely could benefit from lower premiums, which are based on individual data rather than gender-specific assumptions. Malcolm Tarling, from the Association of British Insurers, said: "This gender ban is disappointing news for UK consumers and something the UK insurance industry has fought against for the last decade." Douglas Carswell, the conservative MP, said: '"Three weeks ago the Prime Minister held a meeting for the insurance industry at Downing Street. But because we are not prepared to do anything about Europe, we can do absolutely nothing about this madness.