Identification of a microcar of the 1950s

[luisps]

I would like to know the origin of a microcar that was photographed in Barcelona (Spain) in the first half of the 1950s. The photos show various details of the vehicle and its size compared to a SEAT 1400. The license plate indicates MTR 80627, which has no meaning to me. The engine located in the rear is a single-cylinder, air-cooled engine and appears to be of motorcycle origin.

[Paul Jaray]

I'm pretty sure it's an Orix.

[luisps]

Thanks Paul for your reply, but I'm completely sure it's not an Orix built in Barcelona by Juan Ramirez Montpeó, as this vehicle isn't mentioned in any existing literature about the brand, including a book specifically dedicated to him. Furthermore, I don't think he built any vehicles of this size; all the ones he built were larger and had bigger boxer engines. There's only one convertible listed, but it wasn't this small and was very different.

The first photo shows that, compared to the Seat (Fiat) 1400, we might think it's actually a child's car and not a microcar of the period. The license plate doesn't match any used in Spain at that time and could be a clue to its origin, which I haven't been able to decipher

[Rusty Chrome]

I've said elsewhere in the past that I thought this could be a one-off childrens car built by Automóviles y Autoscooter Kapi. They produced many one-off microcar designs in Barcelona in the early 1950s and the wheels on this look similar to others from them with positive identification. I believe the license plate on the Renault may be from Barcelona although the one on the car itself remains unidentified.

[luisps]

Excuse me "Rusty Crome", but it's not a Kapi either. I'm the custodian of the entire history of that brand because I have contacts with its descendants and have had access to the handwritten list and photos of all the vehicles that "Kapitán" Federico Saldaña produced, including microcars, motorcycles, and three-wheeled vehicles. None of them resemble the little car in the photos. The quality of the bodywork, the type of engine, and its rear-mounted placement are not what any Kapi has.
The closest Spanish vehicle would be the PTV 250, but I've already checked with the manufacturers and it wasn't one of their products; I honestly think it was built in another country.