dash, you’re right, it was available as the Pontiac. But I’d much rather have the Aussie version than the American one!
Raphael, I hear what you’re saying about practicality, it makes perfect sense. I’d just like to add to your Law that for some cars, it would be crucial to upgrade the suspension, tires, and brakes when adding 100 hp. For example, take the 2010 Mustang Shelby GT500 edition, which has about 550 bhp, and put it on a track against the 2010 Roush Mustang, which has about 430 bhp. The Roush will win, even with less horsepower, because it has better suspension, better brakes, and is lighter than the Shelby.
So, just pumping up the horsepower alone may make your car faster in a straight line, but it can rip your tires apart and kill your brakes if you leave the standard ones on.