It's just a marketing gimmick, and a way for owners to show off really, like I've said numerous times, 0-60 is kind of pointless and irrelevant. I think if Teslas still did 0-60 in 10 or 15 seconds, they would still sell well, if it affected range by much, I'm sure the majority of owners would rather a longer range than a car that pins you in your seat every time there's a green light. Electric cars generally feel fast anyway, and the 0-30 times are quicker than most conventional cars as they can deliver all the power at once. Even owners of Leafs say how "fast" they are and they have sprint time of almost 12 seconds. It's not about a number on a screen, it's about how a car feels.
If i put the Prius in "power" mode it makes the initial acceleration seem pretty fast, though it doesn't affect overall performance or top end speed.
It just makes the throttle extremely sensitive.
It is in "eco" mode apart from a few test scenarios!
As for the model S, it has probably replaced the maserati quatroporte as my imaginary lottery win big car....
Tesla has a range calculator for a steady cruise speed with different temperatures and wheel sizes. (scroll down) https://www.tesla.com/models
The 100kWh pack isn't shown yet, but the worse difference in range between the 90D and P90D is 29 miles at 70F at 45mph with 21" wheels. At that speed, both cars will go over 400 miles before needing a charge.
The EPA rated range for for the 90D is 294 miles, and 270 miles for the P90D. There isn't a single motor option for the 90kWh pack, but those are less efficient on the smaller batter models than with AWD.
But here are the fastest accelerating street legal cars made by some semblance of a manufacturer and not just some guy in a shed:
Porsche 918: 2.2 seconds
Ariel Atom V8: 2.3 seconds
Ferrari LaFerrari: 2.4 seconds
Bugatti Veyron Super Sport: 2.5 seconds
Bugatti Chiron: 2.5 seconds
Porsche 911 Turbo S: 2.5 seconds
Koenigsegg One:1 : 2.5 seconds... ish. Probably. Koenigsegg never released an official time for this one.
McLaren P1: 2.6 seconds
And so on. As it is, there are at least two cars here that best the Model S, even if only by a flea’s nose.
The hyperbole is pretty thick over Tesla's one-dimensional zero-to-sixty numbers.
It's still a better vehicle, because it doesn't need fossil fuels to power it like the rest do. Zero to sixty times is just one small aspect of a car, it would be silly to ignore the other benefits of a BEV. Considering some of those manufacturers have been around for decades, and Tesla have only been around for a few years and they are already beating cars ten times the price is impressive.
Tesla's statements on this usually specify fastest for a four door car. While I would likely select the Ariel Atom for throwing around a track, the lack of a roof really limits its usefulness as a daily driver.