[andyww]

In Canada, Southern Ontario, in that time period muscle cars were plentiful. For most of us they were our daily drivers so you would see quite a few of them cruisin' around town. Mostly 340 Swingers, 383 Roadrunners and Superbees, 351 Mustangs, 396 Chevelles and Z28 Camaros. The AMC plant was about 10 miles from where I lived so the Javelins and AMXs were popular there as well.
Where I worked there were about 20 cars in the parking lot. If you drove in there in 1972 you would have seen my 69 COPO Chevelle, a 70 Roadrunner 440-6 pak, 70 340 Duster, 69 Camaro Z28 and a 67 OHC Firebird.
As SS427 mentioned the supercars were rare. I only saw one other COPO Chevelle and a couple of Hemi Chargers on the road in those days. If you went to a car dealership there were usually a few musclecars sitting on the lot. I bought my COPO Chevelle from a Toyota dealer.

Andy