In our family, it’s a tie between two fords:
’85 Ford Tempo. How has nobody mentioned this little gem yet? Ate map sensors like skittles. Junk transmissions (ours was a case failure). An unbelievable amount of chassis flex, you could feel the doors shifting around in their sills while driving. Creaked like it had a mast instead of an engine. Engine was the 2.3L HSC. Basically a 200-I6 with cyls 3&4 cut out the middle and a different head. Both engine and throttle-body injection were uniqe to the car, along with loads of other parts, so trips to the parts house were…interesting. “The 2.3L. No, the other 2.3L. No, the OTHER other 2.3L.” Also a victim of Ford’s early forays into “non-serviceable” and “lifetime” parts. Warped rotors? Good news, you get new bearings too! Why? They’re both permanently affixed to the new steering knuckles you get too…
’02 Taurus wagon. Ohio winters were not kind, and now that it’s in TX, nobody will touch it. Things that should take minutes or hours take days or weeks. Bad sensors. Siezed brakes. Compressor clutch failed, sheared the input shaft, and wedged the pully against the frame rail taking out the entire accessory drive and making driveway repair impossible. All that aside, the thing is impossible to drive well. The only way to drive with any level of competence is to approach it like a u-haul. Do everything slowly and deliberately, while accounting for massive blind spots. It’s car-shaped, but bad at doing car…things. Like turning. And stopping. The goofy body shape makes such a bad joke of the cargo area and loading it’s almost insulting. I drive a ’91 Camry wagon that’s fairly comparable. High-trim, v6, auto, power everything. I think it says a lot that a car that’s 10 yrs older with twice the mileage shows less wear, is more reliable, and is largely a better car in every way than this POS is.