I've put almost 100,000 highway miles on my 2001 Cadillac Deville and while it rides very well and is a good highway car, it is very unreliable. Yesterday for the umpteenth time I bought $2,000 worth of electronic sensor repairs. I've spent almost $10,000 in cash in the last 18 months making repairs including a complete new air conditioning system and a new exhaust system (do to a failed catalytic converter). My 35 years as a GM man are over. I'm going to buy Japanese.
The V8 engine, even though it burns a quart of oil every 3,000 miles.
Either delete some of the electronics or make them reliable.