I've gone back to the RAC due to vehicle ages.
Discounted with IAM membership. I do have to argue the cost each year though...
The insurance I used to have stated a 17 yo max vehicle age, even though they did cover my '76 car for a while, allegedly. Never made a claim, but felt it would be too easy for them to turn round and say I wasn't covered...
What a salesman tells you and reality are often 2 different scenarios...