Driver's seat seam came apart at 60000 km.
Passenger's seat seam came apart at 110000 km.
Driver side front window regulator became defective at 138748 km.
Front spring broke at 147597 km.
Driver side rear window regulator became defective at 160200 km.
My other car is a 1991 Oldsmobile Delta 88 with 315275km. I have had less repairs on the Olds than I have to date on my Buick LeSabre that has 160000 km.
While the Buick provides a comfortable ride, the repair costs are much too excessive.
Let's see, couple window regulators, couple of seat tears, and a spring, looks like some major repairs here, I think you may be in for an overhaul sooner or later.