This is the story so far:
We have a Astra Bertone Coupe MK4 G 2001.
This car used to have a 2.2SE petrol engine fitted
It now has a 2.0DTi engine fitted taken from a Astra MK4 2001 (we think this is the only Coupe in the UK which has had this done).
DVLA changed the fuel and engine number on the V5 but not the CO2
2.2SE 202 G/KM
2.0TDi 154 G/KM
The result is I am paying higher car tax based on the old engines CO2.
So I go into my local DVLA office to get the CO2 changed, simples as the meerkat would say.
No not simples, say the DVLA, the orginal CO2 reading will say with the car even tho you haved changed the engine.
So what does this mean???
Well from what I can work out you can go and get a Corsa 1.3CDTi which is £35 tax a year and shove in a 3.0L V6 Diesel or Petrol and only pay £35 car tax. The DVLA would neither confirm or deny you could do this.
(the above only applies to cars registered on or after 2001 as thats when they started doing Tax based on CO2)
So thats how you can reduce your Car Tax,simples!
The local DVLA have forwarded my request to head office but they are sure nothing can be done but they may as well try.