Cars and light goods vehicles registered before 1 March 2001
The rate of vehicle tax is based on engine size for cars and light goods vehicles registered before 1 March 2001.
Private/light goods (TC11)
Engine size (cc) 12 months rate 6 months rate
Not over 1549 £140.00 £77.00
Over 1549 £225.00 £123.75
This is the only £225 rate so they think your car is pre 01/03/2001
https://www.gov.uk/vehicle-tax-rate-tables
