Nissan X-Tail: Thin seats

Like CarsGuide readers Wayne Javie and his Dualis and Max Wood and his X-Trail the seats in my X-Trail are also wearing. It has only done 60,000km and already the lumber support has collapsed and is also wearing away. I am an interstate truck driver and the truck I drive has done 1.3 million kilometres and the seats are as good as new. I also have a 1996 NC Ford Fairlane that's done 300,000km and the seats in that are perfect, but the X-Trail seats need fixing or replacing. The car is four years old and out of warranty so the dealer doesn't want to help - in any case they said the seats aren't covered by the warranty. I won't be buying another Nissan after this experience.