I'm referencing the online configurator images.
To see what I'm talking about, configure a performance car (P90D or P100D) without PUP and select the "Multi Pattern Black Seats" (not the "Tesla Premium Seats"). Looks to me like you end up with the new seat "architecture" - thinner, better bolstering, movable headrests - but without ventilation.
These do not appear to be the base seats. Look closely. I think they are the Tesla Premium Seats without ventilation. The materials look to be a mix of fabric (textile) and leather-type material that to my eye would be more than acceptable and without spending $5500 ($3000 for PUP+$2500 for seat upgrade). This would make sense if they are standardizing seats across models.
See what I mean? Is this just a bug in the configurator?