Since 2001, VED has been based on the tailpipe CO2 from a vehicle and road tax paid has been on a graduated basis ? the more CO2 the more road tax is paid. The following link will allow you to search for the tailpipe CO2 figure for your vehicle:
http://www.smmt.co.uk/co2/co2intro.cfm, or you can find it on the registration document of your vehicle. Once you know the tailpipe CO2 of your vehicle, you can find out what band it will be in and ultimately, how much it will cost.
http://www.direct.gov.uk/en/Motoring...e/DG_10012524. These charges will change from 1 April 2010.