'cept with his 85 S the whole pack can be dropped in 5 mins.Plus the fact that a relatively minor bump can leave the car written off if there’s any suspicion the battery pack is damaged. (Happened to me, so I can say that first hand. Car was drivable, and seemed eminently repairable, but written off. Not surprised premiums are up).
Nevertheless ya can see why insurance costs are screaming upwards and will make used cars unaffordable or dirt cheap to be sellable...