JON, the problwm was started by Budget and Tesco insurance. There way of looking at things were that the Dynamic costs X amount but the Sporting cost Y. I think back in 2005 it was about £1700. They had 2 main probs
1. the vehicle values
2. incorrect info on V5
One other thing I was told by insurance was that if I insured the car as a dynamic, and tried to claim, say after a bump, and it was found out by the insurer that the car was a Sporting they could deem it to be either misrepresentation or fraud, and wipe there hands of the claim.
Some time later Fiat sent out a letter that was to be returned with the V5 to the DVLA, and a V5 with the correct info was sent out.
Tara Ian
If you want a copy of the Fiat letter, I still have a copy