I actually owned three Triumph Spitfires in the ‘60s, one after the other as they fell apart beyond repair. A 12v positive ground system, Lucas electrics, steel not strong enough for American highways, a weak independent rear suspension which had a tendency to tuck under in a sharp turn, and a spring-loaded gas filler cap directly behind you neck, were only some of the joys of ownership. Another was its unbelievable agility on twisty country roads.
I owned a mid-70s Spitfire during mid-80s. It did have issues, but still was fun to drive around LA, especially to the beaches.