As stated in previous replies the leather is repairable, its the source of what caused it that can be trickier to detect. In all my Morgans I tend to slide into the seats from whatever angle suits best. This sliding with certain types of clothing e.g. buttons on pockets can produce wear on the seats. My +8 was the first to do this as I tended to slide down the back of the seat. Being conscious of this I now ease my way in not allowing any buttons to rub the leather.
Yeah, I noticed something similar on my seat to the pictures, and determined that my belt was scraping on my way down into the car. I remove the steering wheel every time now, and am very careful to sit then then move to put my back against the seat. The damage has not gotten worse since I first noticed and adjusted my entry, though I'll take another look when I get home.
