Not that I doubt you, but is there any hard data to support the 990 being a 'lesser' drive unit? I read a couple of the bigger threads, but saw mostly speculation and educated guesses. I have seen the different pics and the comparisons and specs thrown about. But
has there been an official tear down and test to support this? It's interesting either way. It's tough to find info on this in general.
It's pretty straightforward reasoning based on a bunch of known/documented facts:
All Ps ever made use the 980
The only car the 990 has ever appeared in is the non-P LR AWD (starting in early/mid 2019 depending on area)
So there's 2 axis of difference to consider- cost, and performance capability.
Consider if you can find a way to disagree with any of these individual observations:
1) We know the 990 is either same or lesser performance- because if it were greater it would be in the P. Yes?
2) We know the 990 is cheaper- because if 1 is true (it's not HIGHER performance) and it were equal or more expensive in cost, why would it exist at all?
From 1 and 2 combined we know the 990 is less capable. Because if was cheaper and EQUALLY capable they'd use it everywhere, not just only in the LR AWD.
Thus we can conclude the 990 is both cheaper, and less capable.
Because nothing else fits all the facts we actually know.
(FWIW I think we did see a 990 teardown, though it was just a few pics showing the insides, not detailed analysis/testing- and it was visiblly/physically different... which I mean why else would it be a different PN right?)