2002 Cadillac DeVille DHS 4dr Sedan (4.6L 8cyl 4A)
This is my fifth Cadillac and will probably be my last. It was supposed to be a Certified Pre Owned vehicle but within a week, it was in the shop for three weeks. They had to replace the dash and auto headlights (they are still broken). The traction control can not be turned off (they say it's a computer prob, but can't fix it), there is a pronounced vibration at over 60 mph (the shop says its a characteristic of the car and they can't fix it), and a host of other small problems. I bought the car because it was certified and am sorely disappointed. I always liked Cadillacs but their customer service, at least at my dealership, is horrible. They just don't seem to care one whit. They've sold the car now so to heck with the purchaser. Sad, ain't it.
It is comfortable at cruising speed, when it's not vibrating.
If you are going to sell a car as certified, make sure it operates properly. If it doesn't, fix it or replace it.