Back in the late 60's a friend of mine also had a Jag Mk 2 3.8 litre automatic. As he was only about 19 at the time the insurance was horrendous, and as he was buying it on the 'never-never' he was required to have full comp. He thought he'd save money by once the finance company had been shown the 'full comp' insurance cert he changed it to third party only. Needless to say almost as soon as he'd done that he managed to write the car off. The A12 coming into Romford from Ilford at the time was a succession of roundabouts. Just before the Mawney Road roundabout was a bend, he made the bend but couldn't make the roundabout, when he hit the roundabout at about 70 mph he removed the front suspension, sump and gearbox. Fortunately the only injuries were to his pride (and his pocket).