When the Renown was introduced it was known in UK as "the poor man's Rolls".
Indeed, and many of the components came from the same suppliers - the Wilton carpets, Connelly hides, Wilmot Breeden locks... even the ash trays are straight out of a Rolls/Bentley. However the engine and most of the drive-train are straight Triumph TR-2, so parts there are not hard to come by and very economical. I am fortunate in that my car has virtually no rust and the wood superframe is in great shape. All of the movable body panels are alloy (doors, boot, bonnet) whilst the rest are steel -
very thick steel.
I purposely looked all over the UK for this particular model of car as I did want a luxury car but didn't want luxury prices, and I knew the Renown's well since an acquaintance of mine, Dick Langworth, owned one. And I must say, it was a good choice - it has been a wonderful car. It rides smoother than a Cadillac, and although performance is sedate and steering somewhat ponderous, it is a really an enjoyable car to drive. Once you get used to shifting the 3-speed gearbox with your left hand using a column shift, that is!
Interestingly, Dick also owned a lovely Mayflower... it was black and had tan wicker/rattan-covered side panels and a biscuit interior. I've never seen another like it. Oh, and he owned a fairly nice white Harrington Alpine, too.