Mayor of London Ken Livingstone is to review the exemptions made to the London congestion charge after learning that the Lexus RX400h hybrid SUV did not have to pay. %0D%0A %0D%0AAs a hybrid vehicle the RX400h is officially considered %22green%22 - despite producing far greater emissions and consuming more fuel than many non-hybrid smaller cars. %0D%0A %0D%0AUnder the current system of determining exemptions to the %A38 charge all hybrid vehicles are free from the toll. %0D%0A %0D%0AMr Livingstone is believed to be keen to move on this loophole before it is exploited by other carmakers. The exemption could save Lexus RX400h drivers up to %A31600 a year. %0D%0A %0D%0A%22The Lexus is masquerading as a green car but is far more damaging to the environment than many cars which have to pay the congestion charge%22 Green Party member of the London Authority Jenny Jones told the Times. %0D%0A %0D%0A%22Its size means it causes more congestion and it also poses a danger to pedestrians and cyclists because of the high unforgiving bonnet. %0D%0A %0D%0A%22We must act quickly to close the loophole being exploited by drivers who can easily afford %A38 a day.%22 %0D%0A %0D%0AAs well as the many savings to be made through low emissions vehicles drivers can cut their costs of motoring by finding the best motor insurance cover online.