No, I think that 5.6 time was quoted right at the initial intro, where I guess they hadn't even finished the engineering on the car. Some sort of calculations showed that they should be able to best that number even for the "base" model. With bigger battery Model S (previously) performing much better than the smaller battery (e.g.: 85 vs 60), I had hoped that initial Model 3 with bigger battery would perform much better than the 0-60 in 5.6 quoted. But now that they made the base Model S more quick, I am starting to wonder just how much battery size was a limiting factor. Putting aside that doubt, I was guessing something like:
0-60 in 5.5 for base 60kWh
0-60 in 5.0 for 75kWh pack
0-60 in 4.5 for AWD dual drive 75d
0-60 in 4.0 for P75D
One could dream of Model S P100D 0-60 < 3s, but I am guessing that they won't put such powerful expensive motors into Model 3, and the smaller battery limits max performance.
But this is all just a bunch of guesswork. I never thought I would see any Model S that could do < 3 sec (or the ridiculously ludicrous ~2.5) so I assume I have no clue at this point.
Also, I wonder if Model S 75 now might use the new Model 3 motor / inverter? Is that how they got a performance bump?