If my Coopers are anything to go by the side bolsters fair worse
Mine are distinctly more worn out (well gone shiney) then anywhere on the rest of the seat. It's all the getting in and out that wears them out faster...
I'm going to apply some cleaner and cream to them this weekend to see if the natural finish returns.
The worse thing about it though is that my cars only done 3800 miles
If I can't get them to improve I'm going back to my dealers to complain, I think I'll quote the "sale of goods act" and come up with some legal speil around that I think.
Hopefully though as the S leather, IMO, is far better quality these should fair much better.