Engine mechanics are doing well with nearly 100,000 miles on the car. For the price of these vehicles, they are not the car I would have purchased, other than the fact the C70 is such a great looking machine.
When purchase (used), I wisely chose to also include an extended warranty from front to back. I have numerous friends with Volvo's doing the post yuppie thing looking for the near 'beamer' experience, but experiencing as much time in the shop as out (Consumer Reports tells the story well).
Have had a number of electrical problems and the costs are exorbitant. Small switch for moving the co-pilot seat front to back broke and ran $900 for repair. My warranty people were really miffed. Small spring broke in the pilot seat attached to the same switch to move the seat forward/back and repair was estimated at $240. Bought a specialty spring at Home Depot for 99 cents and plugged that in. Working fine for the last 1.5+ year.
Whoever thought up the stupid cheap cup holders should be shot.
Steering wheel leather/plastic broke down and needed to cover it with a wheel cover.
The small plastic cover on the front bumper hiding the tow hook has fallen off so many times that I am lucky to have found it each time. Finally epoxied that sucker permanently into place.
Leather seats are in dire straits.
When it rains, traveling at 50 - 60 mph there is a thumping that sounds in the right side of the car. Can't tell if it in the sunroof or copilots door. Weird.