Canadian built Mopars
The only differences I know of are:
1) there were no a-body darts in canada before 67. They were all called valiants.
2) They made a handful of 1971 340 darts for Canada
3) I have heard rumors that in Canada there was a 1970 dart GT available. I do remeber seeing one years ago.
There are probably more than this, but all in all there are very few differences compared to GM (ie Pontiac Beaumont and Acadian). Or Mercury trucks. In fact I remember seeing way more 396 beaumonts than chevelles.