While filling a small history of each make + links to related makes, I realize that the British automotive industry is a so worse mess than what I thought So many companies buying each other in the 20th century, that's unbelievable.
I already updated many of the BMC/Leyland, I have the Chrysler / Rootes to do after.

For the make "PGO".
https://www.imcdb.org/vehicles_make-PGO.html

All the vehicles have been put under the Taiwanese make, there are vehicles from the French make.
The vehicles of the French make are those there:
https://www.imcdb.org/vehicles_make-PGO_model-356+Speedster.html
https://www.imcdb.org/vehicles_make-PGO_model-C%C3%A9vennes.html
https://www.imcdb.org/vehicles_make-PGO_model-C%C3%A9vennes+C.html
https://www.imcdb.org/vehicles_make-PGO_model-Speedster+II.html
https://www.imcdb.org/vehicle_141360-PGO.html

Wikipédia:
https://en.wikipedia.org/wiki/PGO_(automobile)
https://fr.wikipedia.org/wiki/PGO_(entreprise)

Here is the new page for the cars:
https://www.imcdb.org/vehicles.php?make=PGO-Automobiles

Thank you.

Logo and Infos for Caselani.
https://www.imcdb.org/vehicles_make-Caselani.html

https://fr.wikipedia.org/wiki/Caselani
https://www.facebook.com/caselani.official/

Updated. There are thousands of makes, I update these one by one from time to time when I land on them while renaming vehicles