Worst: 1983 Chevrolet Celebrity. This thing ate water pumps and radiators. The heater grid plate on the carb was replaced a couple of times. The guy I got this car from only had it dealer serviced. Literally every other bolt on the car was stripped.
Best was my '86 Lincoln Town Car Signature...
www.lincolnsonline.com gets alot more TC posts.
The rear air springs last about 8 years.
If it has the original plastic intake manifold, that will fail eventually.
I've replaced my fuel pump after 10 years.