
http://www.dealdrivers.co.uk/html/road_tax_rates.html
co2 g/km 1st registration 12m tax Standard 12m rate to re-tax existing cars
Up to 100 £0 £0
101 - 110 £0 £20
111 - 120 £0 £30
121 - 130 £0 £90
131 - 140 £110 £110
141 - 150 £125 £125
151 - 165 £155 £155
166 - 175 £250 £180
176 - 185 £300 £200
186 - 200 £425 £235
201 - 225 £550 £245
(inc’ cars emitting 225 g/km registered 1/3/01 - 23/3/06)
226 - 255 £750 £425
over 255 £950 £435