Well… probably the 81 Chevy Citation. Second day after purchasing new, I close the drivers door and heard a loud bang. Discovered the entire window track/regulator assembly fell to the bottom of the door. Welding wasn’t GM’s forte, I guess.
Within the first 500 miles, was the first of 3 transmission failures. Only car to ever make me walk.
At around 2000 miles, was the first of 4 rear main seals. NEVER had to worry about the floorboards rotting out. There were constantly protected my fresh oil!
Heres an interesting one. While on a road trip, I decided to go to a DIY car wash. As I was spraying the bugs off of the plastic “chrome” grille, I discovered I was actually washing the chrome off. I had a mostly white plastic grille when finished. People pay good money to customize a car. I just had to wash it!
I lost track of the computer / fuel delivery problems. The car would surge from 45-55mph without the driver moving the accelerator pedal. Windshield wipers would start/stop on their own. Didn’t they know I lived in Texas and it never rained!
Purchased the car for just short of 10K. Two years later I traded to some poor Dodge dealer and got $2600 out of it. I felt it was a blessing!