If your car insurance is coming up to renewal, you need to make sure that you check the market thoroughly before you speak to your own insurance company. It is very common for your existing insurance company to give you a somewhat uncompetitive quote, simply because they expect that you will stay with them rather than bother with the difficulties of finding a new quote.
The funny thing is, it is actually now very easy to find a new quote, so a lot of the insurance companies are shooting themselves in the foot. All you have to do these days is to jump onto a computer and search for car insurance and you will find a wealth of options that you can choose between.
Of course, you then have the problem of knowing which company to go for, but you really can use your common sense to a degree. For a start you are going to want to go with a fairly cheap deal, but not at the expense of being with a decent company that you feel that you would be able to trust to act quickly and well in the event of a claim.
You can dismiss smaller companies that you have never heard of before, and focus on the ones based in this country that offer you good cover and affordable cover. Whittling down the list that you have should be quick and easy, and you are almost certain to beat any renewal quote that you might be given.