The Scorpion had to be changed for the American market to meet strict emission, safety, and lighting standards and regulations. Like many cars imported over here, that meant it had to be detuned from its original model.
The name of this car had to be changed to Scorpion because the Monte Carlo name was already being used by Chevy.
The Scorpion engine was about 40 horsepower weaker than its European counterpart.
Only the convertible version of the Scorpion was sold in the U.S. These models featured newly styled bumpers and headlights, both to meet safety standards.
1,801 of these cars were made during its two year production run. The 1977 model is by far the rarer one.
You can still find these cars popping up in classifieds and at car auctions. Just the other day I saw one listed on eBay.