As a "car guy", I've had over 100 new cars. Fortunately, most were owned by the auto manufacturer--my employer.
Throughout the years, emissions and safety regulations have made autos and trucks to get increasingly complicated. They now have sensors and electronic modules all over them that communicate with each other through CAN/BUS which is essentially computer wiring.
Have a problem like mud on a ABS wheel sensor, and it will affect your engine control module, ABS (brake) module, transmission control module, stability control module, dash module, cruise control module and possibly more. Check lights will flash, and sometimes the engines will kick off in a fail safe mode. While it seems so serious, often the fix is to pop out the wheel sensor and wash it with a toothbrush and dishwashing liquid.
I have a Jaguar convertible that's been running me crazy for years with electronic problems. And I still long for the good "ole" days when automobiles were not so complicated as they are today.
We also have a Lexus (my 4th) that has 105K miles and has never seen the dealer for any reason--or ever been in the shop except for brakes and tires.
If you're going to be in the market for a full size automobile like the Lincoln or Cadillac, I would suggest you look at a Lexus GS. It's a car that has components that simply work as designed and they're bulletproof mechanically. The Lexus brand continues to lead the market in customer satisfaction, and they simply hold their resale value at the top of the market. Lastly, the Lexus dealers are a class of their own in quality--sales, parts and service.
The Lincoln and Cadillac are fine cars, but they're just not the best choice for a long term value in transportation. And I've had many Lincolns over the years.