It have minilites, 12, or 13, I think. 4 bolt. Leafsprings? OK, it is 1970, but on such a small car? That might be a rear, or 4WD?
It's rather short. It would not suprice me if it was based on a Honda, or a British car.
I have a feeling for Japan. This might be just because of the fact that Honda worked hard on the american arena back then.
The minilights might be a lead towards the UK, but I have a problem seeing a proper platform.