The M157 biturbo V8 in the W212 E63 is one of the most underrated platforms in the AMG lineup right now. While everyone's fighting over C63s and driving up prices, the W212 is sitting there with the same hand-built engine, more presence, and way more room to build — often for less money. The facelift cars (2014+) got the S-model's 577hp tune from the factory, and even the pre-facelift cars are making north of 700whp on bolt-ons and a tune. That's not a typo. Here's what we broke down in this guide: → Why the M157 has so much headroom from the factory → What to look for (and avoid) when shopping W212 E63s → The mod path that actually makes sense — no wasted money → How to get the wheel and suspension setup right without ruining the ride → Why now is the time to pull the trigger before prices catch up The W212 is one of those cars where the right wheel setup completely transforms the stance. A staggered 20" fitment with proper concavity turns it from "nice sedan" into something that ...