The problem with using a 30 year old tv programme as an example is that the world has moved on. A long way.
Today’s Morgan would be near unrecognisable to Harvey-Jones; it’s moved from building 1930s products the way they were built in the 30s to being a prime example of modern niche manufacturing. A modern Morgan may look vaguely similar, but it’s built using state-of-the art engineering.
As for the PDCA Cycle, I’ve no idea if Morgan use it. Probably not; it’s now often recognised as being too slow and inflexible for modern iterative manufacturing. There are alternatives….
Peter Morgan came to our gaff in 2000, and the boss showed him around my workshop, at this time it was a 4 man (including me as foreman / manager) set up making suspension / radiators and various pitgear (pitgear for several F1 teams at one point after this!).
Anyhow, we had acres of 316 stainless bits and bobs in the pitgear area and his attention was drawn to a load of oval 1/8" thick 316 SS shapes on a surface table, ......used to blank stainless tube cut at an angle.
"How long did it take someone to make all those?" he said.
"Dunno mate" says me, "I email an IGES or DXF file to a water jet machine in Redditch and they cost about 80p each I think, all done remotely, some bloke just chucks a sheet of metal on and the machine works out the nesting etc. and best use"
He was gobsmacked, had never heard of the process, which was the norm in places I had worked for ages, not just racing but any small engineering outfit.
They (Morgans) did modernise a fair bit in the next few years and upped production, bringing in more modern systems to keep up, to the point that my apprentice when he left me, actually refused a job offer there as so little "proper" old school skills in his area (fabrication) were being employed.
The "highlight" of his tour being a big faff about banging in a few louvers on a flypress in a bonnet panel, on simple bends on a roller, and simple knocking over and wrapping panels, very little traditional stuff as a Morgan is not exactly curvy so no complex wheeling etc. needed apart from a bit of shape on the front guards.
"Hand finished" more and more are most "hand built" cars, due simply to time / budget vs. what you can charge restraints.
He now works in a restoration place doing Buggattis and the like to folk who want the whole job painstakingly done by hand the old way, at any cost as they are minted and want the best.......
This is the sort of shape he can magic out of sheet.........