The Yukon used to be the SUV you bought once and drove forever, GMT800s from 1999-2006 still cruise past 250k miles on original drivetrains, but the current 6.2L V8 has a bearing flaw that causes engines to seize without warning, sometimes at highway speed, often under 30k miles. GM recalled 2019-2024 models but 2025s are failing identically; one owner's engine died at 20k after the dealer promised the issue was resolved. If you need a new Yukon, the 3.0L Duramax diesel is the only powertrain worth trusting, though it's had scattered early turbo failures. Otherwise, find a GMT800 with records and accept 12 mpg, it's the last generation that actually delivers on the reputation.
Mercedes built its bestselling SUV on a solid foundation, the 2016-2022 GLC earned genuine loyalty with 100k-mile trouble-free runs and that swanky interior. But the 2025 GLC 350e plug-in hybrid is stranding owners with complete electrical shutdowns while driving, triggering lemon law buybacks in California. Mercedes calls it a software glitch; owners wait weeks for parts from Germany while their $60k SUV sits dead. The standard gas models look promising with refined engines and improved cabins, but thin long-term data means you're betting on Mercedes fixing what broke between generations. Budget for warranty coverage, repair bills hit $5k-6k when things fail, and modern Mercedes complexity makes that a when, not if.