One thing I've found with insurance is that you also need to check the excess you will pay if you claim, when I recently renewed I wanted to lower my excess, unfortunately this did rather increase the price of the quote but if I ever need it hopefully it will be worth paying the extra rather than paying for something I can't use unless the car is written off.
I ended up with Privilege as well but noticed they put a compulsory excess on for drivers under 25 but in balance were the best quote for me.
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2008 Silver ST