Here is the detail........

A <100 g/km
B 101-120 g/km
C 121-150 g/km
D 151-165 g/km
E 166-185 g/km
F 186-225 g/km
G** > 225 g/km

• raising the rate for the most polluting cars (band G) to £300 in 2007-08 and £400 in 2008-09; and reducing the rate for low-carbon band B cars to £35 in 2007-08, with that rate then frozen for the subsequent two years;
• raising the rates for graduated bands C-E, cars registered before 2001 and all light goods vehicles by £5 in each of the next three years;
• raising the rates for graduated band F by £10 in 2007-08, then £5 in each of the subsequent two years;
• in 2007-08 only, freezing the rates for motorbikes in the lower band with
higher bands increasing by £1-£2; and freezing VED rates for Heavy Goods Vehicles (HGV), Special Types Vehicles, Combined Transport Vehicles and all vehicle categories that are linked to the basic goods rate;7 and
• aligning the VED rates for petrol and diesel cars as the differential in nitrogen oxides and particulate matter emissions for new cars is expected to fall to close to zero once Euro V and VI emission standards become mandatory.
• Changes to this year’s VED rates take effect from 22 March 2007. All changes in subsequent years take effect from licenses commencing 1 April in the respective year.