The widespread availability of the 911 is one of the recurring jokes and lines in the world of motoring, and more to the point in the world of automotive journalism. If I had a dollar for each time I read "every man and his dog has one" about the 911, by now I could probably afford a 911. And if I had a dollar for every time I heard somebody say that its engine is in the "wrong" place, I could afford a garage in London where to park it.
The Porsche 911 has been the benchmark for sportscars and, to some extent, supercars for the last few decades. I don't really agree with people who say you can use it every day, let's face it with a rear engine and huge power under the bonnet you can hardly call it practical, can you? But, the fact of the matter is that the 911 is a very good car. They may have placed the engine in the wrong place, but they have done it, stubbornly, for so long that it now somehow makes sense. It works.
The 911 is a GAME CHANGER because, whether you call it a sportscar or a supercar, and whether you like it or not, it's become an automotive benchmark. High performance hypercars, nifty sportscars, take anything, and the 911 is always a force to be reckoned with.