My renewal notice from Admaral came in at £980. Got £720 from Go compare. Told IAM Surety, who insure my motorcycle that best quote was £720, they came up with £680. Told Admiral (my current insurer) that I had a quote of £680, they then offered a price of £605, which I accepted. 56 yr old diver with full no claims, but 17,000 business miles a year seemed to be a problem for a many insurers. The value of newer Range Rovers also seems to be a bit of an issue for the run of the mill insurers. Guess they are happy to write off a 10k car, but scared of the repair cost of an £80k one.
One sure thing is that if you are short of time to do the work of getting a good price, you could end up paying double.

You have a tracker ?
I used to....but the renewal price for my tracker was nothing short of extortionate. £200 squid a year for a tracker subscription ? Well....told them to Foxtrot Oscar.

In fact...I can feel a tracker thread coming on.