I run my details through 3 comparison websites EVERY year, it doesn't take long once you've done it the first time.
Then a quick phonecall to the best offer, and it usually drops a little more.
This year I insured my 3 year Mercedes Sprinter on a 5,000ml policy, fully comp, prot. ncb. £185 !!!
You've gotta check EVERY year or they'll make ya pay for it!!!
