Hey! I remember about the Manic GT...
As I recall reading, it was supposed to be quite a sports car.
As the story goes (if I remember correctly), a Quebec guy wanted to import the Alpine sports car in but wasn't allowed to, so he developed the Manic GT instead around the same concept. It never got very far, and there are very few left today.
There, how's that, and I didn't check out that website yet.
And in the early days (pre-1920's) there were many Canadian manufacturers, but virtually all of them were small-scale. There was even a company in the middle of Saskatchewan who briefly manufactured cars in those early days.