Car insurance is usually covered in smokescreens. In reality no insurance is cheaper than any other because if you look at the policy then you will get what you pay for. Higher liabilities, higher deductibles, etc etc.
I mean, you should be able to find a good cheap policy, but if it's too cheap the problems will arise if you ever need to claim.
Last year my cousin bought a brand new Hayabusa. Got cheap insurance, it got nicked. Here he is 10 months later still fighting it out with them because they keep sending him insulting offers.