Can't really see the point of lightweight seats or indeed a lightweight pack in a 992 turbo S which tips the scales as one the heaviest tin top 911's ever.
The character of the car suits the 18 ways much better and the rear seats are then accessible too.
The full buckets would look pretty special, but yes agree would rather the practicality of rear access on a turbo, save the full non folding buckets for Gt stuff!