Which is the pertinent argument, to a point.
Peel Engineering, the original, was an Isle of Man based business. From what I can understand it chose neither to protect its name, nor its product. Therefore another company could be created called Peel Engineering. It was created, and is based in the UK. Peel Engineering IOM was then restored to existence to prevent IOM production, and it was hoped protect the original run of cars. The latter it has mostly failed to do, as the design was not protected consistently. Anyone can make the design, until, or unless, a court action says otherwise. The new Peel Engineering has also failed to protect its product from copy. At least I do not believe they have done so, as at least two other people have semi productionised examples of a generic vehicle called a Peel 50. To put it another way, the cat is out of the bag.
So what is an 'original' 'Peel Engineering' 'P50'. It is anything made be anyone calling themselves legally Peel Engineering that they choose to call a P50. As a vehicle it could actually be a re-badged Kia. But the concept / design is the selling point so we accept that it will used the smallest production car tag to sell. As I understand it, anyone can make a Peel 50. No one owns the design. It just cannot be an original P50. Indeed P50 is not a unique car name. There is an East German P50, for instance, and rather nice it is to.
So as I see it, there is nothing stopping me going to India and setting up Peel Engineering (India) and using local resources to make an Indian market based Peel 50 and selling 500 of them as 'original Peels' at a very keen price, flooding the market, and yet still taking a pretty good profit out of the deal. No not using elephants! Its all in the wording of the advertisement and marketing, as I cannot claim they are of the original run of IOM Peels. But if I make a very accurate production run, as well as modern production versions, I can kill both markets stone dead as an investment. This is the danger of replicas, copies and so on, although I am stating an unlikely case. Yet look what happened with AC Cobras (though here the real ones bask in some glory)
What has to happen is that, as with Cobras and other rare valuable cars, there needs to be a an accessible register of the genuine cars, those made from left over bits of genuine cars later, and issued with continuation chassis numbers , and then, if anyone cares, to the after market versions. But only Peel Engineering IOM, I suggest, can legitimately make continuation production for while the design is open, the fact of where, and that the entity that made the originals, still exists, is not, unless someone obtained a right to make them. I would suggest Andy Carter might be the only person who approaches that position, I understand he has owned the rights to the Peel Viking. Done, this becomes a resource for agents and dealers selling, and the buyers, to obtain the known history of each car coming up for sale, no excuses. That might require a consultation fee, but nobody need claim ignorance in defence of a bad purchase, as the records would be available to anyone. The problem the interrogator has of the register is to ask the correct question. For that is the method most of these entities use to protect the information from abuse, and further fakery. They answer only specific questions, until certainty that the car is the correct one. Even then some detail would have to be held back, I suspect. But that is good enough to flush out any non original cars.
So check that eBay wording again. Tricky.