They also have changed the figures to 4.9 seconds for 0-60 and since Porsche is always conservative on all figures you will likely get 4.7-4.8 seconds.
I bet you it is because they did the tests at 70mph with altitude and that that estimated range is probably at different speeds but we shall see tomorrow.
But we also have to remember that Porsche is always conservative - of all cars I owned in the last 20 years I have always had better 0-60 than what was published. Same thing for my Taycan 4S - both in terms of range and 0-60. We shall see when real reviews will come out and when some of us will...