The M491 "Turbo-Look" option in the '80s was known as the Supersport in the UK. Porsche wanted to do that here too, but quickly changed the name b/c of GM's use of the Supersport moniker.
Ditto. The very idea of the eco-tard vein-popping that would come of turning ~7,500 lbs of jet fuel into noise and speed just to fly to Philly and get a cheese steak... well, it just warms my cockles.