First I'd heard of a hybrid being tricky to insure. Mind, one risk profile with one underwriter is a very small sample.
This and EV insurance is definetly a developing news story as it were. It will be interesting to see where the insurance market is with them in 2-3 yrs time. Are insurers being overly cautious right now, or is this just the sign of things to come now more and more cars have battery power?
As someone mentioned on another thread, a convential fuel vehicle is more likely than ever to be involved with an EV third party liability claim with much higher costs.
Premiums are risiing fast and I expect they will continue to do so apace for some time.