Just write down all cars you like then see this
http://www.comparecheapmotorinsuranc...d=xyo0tt23m009 take the quote, they'll come back with prices from different insurers in your area. It's very quick and free of charge.
When you get the quote, do not close your browser, just back up, change car then get another quote for the new car.
Write it all down so you don't forget.
Also write down the name of the insurer and the link to go back to them.
This is a similar place with another set of insurers:
http://www.comparecheapmotorinsuranc...d=xyo0tt23m009
Spend a couple of days like this, getting quotes and getting your data down till you have enough so you can now see which was the best/cheapest price.
There'll be more on google. Good Luck