The W212 E63 is one of the hardest-hitting super sedans ever built. It's also one of the most expensive ways to learn what "deferred maintenance" really means. The M156/M157 motors sound absolutely unreal and make power that embarrasses cars costing twice as much. But there's a reason clean examples are getting cheaper — the people selling them know what's coming next on the maintenance schedule. Here's what we broke down in this one: → Why "affordable" E63s are rarely actually affordable once you factor in the AMG premium on every single part → The ticking time bomb under the hood that can turn a weekend cruise into a five-figure repair bill → All the other stuff that quietly fails while you're worrying about the engine → The specific type of buyer who can actually make this car work → Alternatives that scratch the same itch without the financial anxiety Look — I'm not saying don't buy one. I'm saying go in with your eyes open. The W212 E63 rewards the informed buyer and absolutel...