(2) how many vehicles have free historic vehicle tax discs.
The numbers of licensed vehicles over 25 years of age at the end of 2006 and registered in Great Britain were as follows:
Number of licensed vehicles (thousand) All vehicles 723 Exempt from vehicle excise duty—historic vehicle 307 Exempt from vehicle excise duty—other reasons 232 Not exempt from vehicle excise duty 183
The data given above include vehicles where the year of manufacture is not known.