I think mine is a group 17, I'm 32, had 6 years no-claims, had a small accident this year and mine comes out at £530 a year - think it is Zurich (through Subaru Insured) -

Direct Line wanted £740
Elephant wanted £680
the highest I saw was over £1200

Andy - paying that much for a group 16 is outrageous (or do you live near London?)