We don't know why Tesla rated them different.
One explanation could be SOC (state of charge).
Err...At the kmh equivalent of 60 mph, the Ps power dropped
more than the AWD did from 90->70% SoC.
The AWD is only down a mere 10 KW from 90% SoC to 70% SoC at ~60 mph.
The P is down roughly 3 times that much in the same SoC drop at ~60.
Which makes some sense since we know the AWD is being held back by software not any actual battery/motor HW limitation.
That said- none of that explains, in any way, why Tesla rates
all of their P vehicles using a
different 0-60 measurement than their non-P vehicles.
A practice nobody else in the auto industry engages in, because it's clearly dishonest.
Either a company measures ALL their cars with rollout (GM for example) or they measure NONE of their cars that way (BMW for example).
It'd be like if they listed the mileage of one version of a car using the European ratings and another using the US one. (Which, like the 0-60 thing, would make one car look artificially better in comparison- since the Euro numbers are always 'better' but also like the 0-60 thing would leave the average consumer unable to accurately compare the 2 cars).
Even worse, the average buyer probably isn't even aware they're doing it since they've actively hidden this info (there used to be a pretty clear disclaimer about it back in the P85 days but I guess they wanted to make it even harder to notice they were being dishonest about it)
The Ps 0-60 gets worse with lower SoC too. Every EV does. That's not a "difference" requiring dishonest spec listings.
What makes it worse is when the 3 first came out, Tesla in a pleasant surprise did
not do this... (though they've always done it on the S/X).
Many hoped it represented a change in policy with Tesla becoming more honest about their specs since they were going "mass market" with the 3...
And then a while later they just reverted back and dropped the P3s 0-60 without actually doing anything to make the car any faster, simply by switching the public # to rollout, while leaving the others listed without.