This may help those of you that are over 25. I have just renewed my Mazda insurance, I paid £325 last year through A Plan. Received my renewal and with another years ncd to be added the renewal came in at £467. From another forum I was recommended Richard Egger Insurance Services and have been quoted £275 which also includes business use as well. They specialise in sports car insurance including track day as well.
Tel number 0115 985 0165
Hope this helps some of you.