GT40 insuarance for 2024

Hello all, I have just had my renewal quote come through from Adrian Flux. They have hiked my insurance from £559 to £1000 with no explanation. So much for their specialist taylored insurance! Needless to say they have just lost a customer unless they can drastically reduce the premium. What companies are others going with?
I’ve seen reports suggesting UK car insurance has risen 58% from last year. I’m currently with
Yes they have. I have been told by insiders that too many high end cars are being stolen and too many people are claiming to have their lease cars and HP cars repaired to avoid voiding their contracts from handing back damaged cars at the end of the terms,..... and the industry is loosing money.