Interior aging: seat bladders, headliner sag, leather shrinkage

The multicontour seats use pneumatic bladders that fail or reverse direction over time, the headliner sags, and the fully leather-wrapped dash and door panels shrink, bubble or lift with UV exposure, likened to the shrinkage seen on Ferrari and Porsche interiors. Owners treat these as normal wear on a 20-plus-year-old car rather than fundamental faults.