The Isuzu Hillman Express was an estate (station wagon) version of the Audax Minx that was unique to Japan. First introduced some time between August 1958 and October 1959, the Express was very different to the UK Hillman Minx estate. The Express had only two doors, sliding rear passenger windows and a single-piece tailgate that was hinged at the side. The Roofline of the Express was also different, and resembled that of the Commer delivery van (or Mark Minx Estate). The Express used the less powerful engine from the Standard model Minx.
Inside the Express
The unusual nature of the Isuzu Hillman Express can be seen in this brochure picture. It was clearly being marketed as a dual purpose vehicle - workhorse during the week, family car at the weekend. Note the side opening tailgate and the unusual split of the front seat, 1/3rd of the way across.
Another brochure shot, with the family enjoying a BBQ. The Express remained in production until at least 1963 (possibly longer). Ultimately it was replaced by the Isuzu Bellett Express estate, which was released in June 1963.