What's the difference?
Big sedans are not in vogue at the moment and huge luxury sedans were on the way down before the humble Commodore and Falcon departed the upper end of the sales charts. The Germans, who have always done a spectacular job of these flagship sedans, cheerfully persist with these cars.
Absolutely loaded with fascinating technology that bleeds its way down to the more mainstream models, they represent the zenith of the brand's innovation and style. The A8 is certainly that.
What it isn't, is particularly sporty, but after two years since its launch, V8 power has reached the fourth-generation super-sedan to deliver the latest iteration of the iconic S8.
If you have even a passing interest in the Tesla Model S, you'll have seen the endless internet videos where someone has lined up a Ferrari, Lamborghini, or another fast exotic car you could name, to race against it.
There's a long build-up, usually involving men who can't operate a baseball cap, a drag strip and idiotic words in the headline like "destroys" or "rips", or whatever. There's usually a bunch of honking bros with bad haircuts watching on, already planning their next viral video where they set a perfectly good mobile phone on fire.
It's facile and idiotic and doesn't give you any real clue as to the depth of whatever supercar it has "humiliated" or, just as importantly, the depth of the Model S and its spectacular engineering.
So, I won't be spending the next thousand words building up to the conclusion that the Model S P100D with Ludicrous Mode is up there with the world's fastest production cars from 0-100km/h, because I'll tell you now that it is, and it does it in a claimed 2.7 seconds.
Now that's out of the way, there's quite a bit more to the Model S than a "broken" Nissan GT-R owner weeping into their bento box.
The S8's existence is a source of joy for me because it's not a huge SUV. Yes, it's a huge sedan but it's a reminder that the technological flagship is alive and well, at least in Germany. And the important thing about these cars is the way the toys filter down through the rest of the range. That used to take years but we're seeing this cool stuff a lot more quickly, right down to the A1.
The S8 punches, and punches hard in this rarefied part of an already shrunken section of the market - the twin-turbo V8 matches its German rivals, it's lighter and it's as well-stacked as any of the three. What it doesn't do, however, is shout about itself the way the other two do. It's the incognito choice.
I spoke to a friend who bought a Model S before one had even hit the ground here in Australia. He chuckled when I told him how much this car cost but then said something I'd already suspected. "My mates who own a P100D would never drop that kind of money on a normal car. Buying a Tesla is like buying shares in the company, you're buying into the future."
And that's kind of the point. A $300,000 Audi RS7 (fully-loaded, obviously) is a bit slower in a straight line, looks just as good, is extremely well-built and emits noises that make people like me go as weak at the knees (just as the Model S' acceleration does). And would probably win a 10 lap race with the Tesla around Mount Panorama.
The Tesla is the future of cars. It may still be decades before the internal combustion engine is gone, but Tesla buyers are getting the jump, and today the Model S is the best car in which to make that leap.