No cars lost, only the new one gained. So, maybe, there's hope some manufacturers will actually have no cars cut.
Still, again, only the one new Land Rover we had seen has been added. The theory seems to stand. This means only the new GR Supra for Toyota and those 3 new cars for Porsche.
What we can do now is speculate which (if any) cars will be dropped from Toyota and Porsche.
EDIT: And that's 3 more cars to add to my in-game garage...
I agree with this theory, and would also suggest that Toyota and Porsche might be the last manufacturers we get a car list for before the next Let's Go! episode.
If we do get any other manufacturer listed before then, it's going to be one where there are no new additions, just returnees (and omissions).
My hypothesis is that we are now going to see new additions during each Let's Go instalment up to release (which would be ?4 instalments). It depends on how many additions are included at launch, but there could easily be another 4x3=12 or 4x4=16 left to be shown.
EDIT - i originally forgot to divide 8 weeks by two as Let's Go is every fortnight d'oh!!!
This is partly based on there being minimal car additions in FH4 in 2021, so there must reasonably be at least 30 cars that have been completed this year but not added to FH4 and therefore available for FH5 as new additions.And we've only seen a few of those so far.
Of course, some of those might be held back for DLC car packs post release, or Forzathons.
And, leading on from that, any new vehicle shown will then result in that manufacturer being listed via tweet in the following 2 weeks prior to the next Let's Go episode. And so on.