Honda Conversion Effect on VED Road Tax?

[Pum]

Hi. I've searched the forums here and seloc and googled various terms, but haven't found a clear answer to this - if a car has an engine change, such as putting a Honda K20 engine from a Civic Type R (CO2 215 g/km, VED band K, £215) into an Elise 111S (CO2 163 g/km, VED band G, £150), what happens to the VED road tax? I know you are supposed to notify DVLA of the change in engine capacity and serial number, but do they then change the VED road tax band?

What if you further tinker with it, altering the CO2 emmisions?

Thanx, Pum.

[shangani]

No change, the tax band stays as it was for the 111s.

[Scuffers]

as above, there is no mechanism to change the CO2 figure for a car once it's registered.

[kambites]

You'd have to buy an awful lot of road tax to justify the extra cost of buying the 111S in the first place, though.

[bogie]

yeah, its a lot better to have a basic early car to start with and keep that low CO2 tax....then put a 350bhp Honda in the back LOL