Is it a new car or second hand?
If new try Fiat themselves they may give you one years free or something.
If not i have been with Direct Line for 8 years, and they have always offered the best value for money.
I.e. Free Vandalism cover (claims not affected), claims not affected if hit by uninsured tosspot, Free Coutersey car, Breakdown cover, legal fees, free windscreen chip repairs.