Insurance companies aren't the issue people not declaring and the government changing how to declare stuff are. My starlet i tried to declare as a 1.6, updated the v5 sent off, to then have it sent back with a a letter stating i need to provide proof of the engine swap. Ok fair enough, headed letter from a garage etc etc. Off it goes again and alls peachy I then try to declare my corolla with an engine swap exactly the same headed letter and all, but now theyve changed how you do it. I now have to go to the post office and tell them i need to pay more tax then use the tax number on that to fill in a v70 form or some crap and post that off with my updated v5, headed letter and v70 just so the dvla will accept that I've got a bigger engine in my car!? Is it really that hard to just go oh, hes told us hes got a bigger engine so needs to pay extra for tax heres your v5c next time you tax it use this to pay any extra?