I insure my fiesta using the rs owners club policy, when I moved to them I faxed them the page and a half of mods I had done. I now email any updates. This has saved my ass with the police at least once as it doesn't have uk plates so I tend to get pulled by the random DVLA checks. As it is ALL legitimate it normally only costs me about 10 to 15 mins.......
what always suprises me is the difference of approach the police have, some times its fairly non commital, some times they are complete A**holes, poking through EVERY bit of the car, documents accuing me of having a ringer etc not accepting my documents and genuinely trying to really upset me, but some times they are Realy nice! ask about the car tell me now nice it is to see a old car like that so sell looked after! It's rolling the dice and hoping it doesn't come up 1!