I kept the original page for the American cars: https://imcdb.org/vehicles.php?make=Peerless
Here is the new page for the UK cars: https://imcdb.org/vehicles.php?make=Peerless-Cars

Peerless
https://imcdb.org/vehicle_1447274-Peerless-2-Litre-GT-1959.html - British sports car
https://imcdb.org/vehicle_2050800-Peerless-1926.html - US car manufacturer

Done:
https://www.imcdb.org/vehicles.php?make=Rex for the Chinese recent models
https://www.imcdb.org/vehicles.php?make=AB-Rex for the Swedish mopeds
https://www.imcdb.org/vehicles.php?make=Rex-Motoren-Werke for the old German mopeds
https://www.imcdb.org/vehicles.php?make=Rexworks for the American heavy equipment

There were just three Romanian tractors in addition to the two Swiss bikes, I think these tractors should be listed under UTB like all the others.
I keep the links here for reference
https://www.imcdb.org/vehicle_1150100-Universal-533.html
https://www.imcdb.org/vehicle_1153430-Universal-445-V.html
https://www.imcdb.org/vehicle_937599-Universal-445-D.html

I'll do the split for the Rex vehicles later

https://www.imcdb.org/vehicles_make-Universal.html
Swiss bikes: https://www.imcdb.org/vehicle_312217-Universal-600.html
https://www.imcdb.org/vehicle_1629529-Universal-B50.html

https://www.imcdb.org/vehicles_make-Rex.html
German mopeds: https://www.imcdb.org/vehicle_260816-Rex-17-1955.html
https://www.imcdb.org/vehicle_650214-Rex-Monaco.html
https://www.imcdb.org/vehicle_290399-Rex-Piccolo.html
https://www.imcdb.org/vehicle_83568-Rex.html
https://www.imcdb.org/vehicle_1394442-Rex.html
Sweden mopeds: https://www.imcdb.org/vehicle_1393092-Rex-Midget-Sport-1938.html
https://www.imcdb.org/vehicle_196401-Rex-Rexoped-1955.html
https://www.imcdb.org/vehicle_362291-Rex-Z%C3%BCndapped-1954.html
USA construction vehicles: https://www.imcdb.org/vehicles_make-Rex_model-Pactor.html
https://www.imcdb.org/vehicles_make-Rex_model-RexRoll.html
https://www.imcdb.org/vehicle_21517-Rex-SP-700-1979.html
https://www.imcdb.org/vehicle_27967-Rex-SP-910B.html
https://www.imcdb.org/vehicle_17187-Rex-Trashmaster-3-70A.html

I finally found what caused that issue
It should now be fixed (tested in Firefox/Chrome/Edge, crossing fingers for Safari...)

I thought it was the fault of the ads, but no, it was just my CSS code
I wonder why I could not reproduce the issue back then: I fixed something related to that a while ago, but it solved only a part of the problem, as yesterday I noticed a case where I had the issue myself.

I added new makes for these.
For the Hydrodyne ones, it seems that name is part of the make, so I listed it as such: https://imcdb.org/vehicles_make-Star-Hydrodyne.html

This is yet another Star company ? https://imcdb.org/vehicle_1165366-Star-Mazda.html
And https://imcdb.org/vehicles_make-Star-Car_model-Hydrodyne.html not sure is Make Star or Star-Hydrodyne

Thanks, fixed. Sometimes it becomes confusing with all these links between pages. I also recently updated the links between all the ancestors and makes related to Daewoo, that was quite complicated

Star Car link in there is wrong, https://imcdb.org/vehicles.php?make=Star, should be https://imcdb.org/vehicles.php?make=Star-Car