Every GM product I ever owned.
Chevy van - had to carry a spare altenator with me always.
Chevy Caprice - nylon reverse gear goes out.
Chevy Vega - Aluminum cylinder walls. Quart of oil every 50 miles after 30,000 miles on the engine (never owned it but could not pass up mention of it).
Gasoline enginer converted to diesel that blew up at 35,000 miles (did not own that one either).
IROC Camero z28. To give it 10 more hp they put an electric fan. Overheats at idle. This one was towed into the garage so many times I finally told GM to fix it free - and they did.
The Chevy V6 diesels in the late 80’s detonated. And The 2.8 gas engines cracked around 114k very predictably.