Hello Simon!! That kit was made from a Dodge Colt 4 door (the car, not the wagon). The ownwer's name is Angel Quintana, from Puerto Rico, and the master of the kit was made by another fellow modeler. His name is Antonio (by the way, he's another great modeler, too!!) I have another one that Antonio made the master for me, and I'm making some modifications to it, to build it as a street version. About the model you showed in the photo, I had one of those, (I paid $215.00 for it and I sold it 5 years later for $265.00) and, believe me, that kit isn't easy to make a two door of it as you think. That kit is a motorized version, and the details are very poor ones... You can convert it in a Mazda 1200 instead of a Mazda R100.....
I'm including some photos of my R100 project,so you can observe the difference between both wagons.....