Appears that UK road tax will end up as either £260 or £460 (first year £580 or £1000), depending which of those two CO2 emissions figures is correct (that's assuming that attempts to qualify for tricycle classification -under 450Kg kerb weight - have failed. As a trike, it would have been £74 pa.). Ouch!
This whole Road Tax thing mystifies me. There need to be a 'Fairness Factor' built in by the Boffins (with half a brain).
I have seen a Massive Ford Based Camper Van and a recent Ford Puma Engined Land Rover SWB Defender, both taxed for £125.00