I had an 81 chevette gasser and my father had an 82 diesel at the same time. his was underpowered but reliable, mine I wish I had not sold....it just always ran. Both engines were made by isuzu. I got around 30 and he always got around 45.
We also had a luv 4X4 and a 2wd diesel. The engines were the same as the chevettes.
I would never have rated any of them high on comfor though
Jim