What percentage of Healey owners have had to use one?
My dad drove his Healey for 11 yrs, daily driver. He didn't have one and I don't remember ever seeing an extinguisher in any daily driver sports cars back then.
Not saying it's not good insurance to have one.
Fire extinguishers is right up there with what spare parts do you carry, as better not leave home without it.
Having the extinguisher in plain site in the cockpit, is it look how safe I am, or does it make passengers nervous as in, why do you need to have an extinguisher?