What made you replace your last car?
It was getting unreliable. It was my wife's car and with winter approaching I didn't want her driving something that might leave her stranded in the dark and cold, in an area with little to no cellphone service. We'd tried everything we could think of to get it fixed but nothing worked, so we replaced the car.
Later on a local garage managed to diagnose and fix the problem but by then we had her new car, so we sold the old one. It was good to be able to sell it as a car that worked perfectly rather than a car that had a known problem that could have been serious.