A friend restored one of these. They were the last post-war saloon with a prewar look, and they were far superior to the previous Mk IV, whcih was coach-built (metal panels over wood inner framework that cost several times what the all metal Mk V does to restore).
Quite handsome in their day, and they outsold the then new XK 120 by a considerable margin. Personally, I'd rather have the coupe than the drophead version - less fiddling to get water seal and the sollon usually (always?) came with a sunroof.
Nowhere near as good as the best post war 1950s saloon (that I used to own) the Mk 9 with stately post war styling, big disc brakes on all corners and a 3.8 DOHC engine vs. the pushrod 2 1/2-3 1/2 liter used in the Mk V.