The Mayor of London is proposing a discount on the £8 rate for "greener" cars but an increase to £25 for "environmentally damaging" vehicles. The top rate would apply to any vehicle emitting more than 225g of CO2 a kilometre (g/km), including the Range Rover, Toyota Land Cruiser and some versions of the Renault Espace and BMW 5-series.
Cars emitting 120g/km or less, such as some models of the Citroen C2 and C3, and the Renault Clio, would pay less than £8, though the exact figure has to be decided. But the new sliding scale of charges would mean about 44 per cent of motorists paying more than £8.
