
Mercedes-AMG GLE63 S and GLS63 Power Up With a 603-HP Flat-Plane Hybrid V8
Mercedes-AMG updates the 2027 GLE63 S and GLS63 with a revised M177 Evo 4.0L twin‑turbo V8 paired to a 48‑volt mild‑hybrid system, delivering 603 hp and 627 lb‑ft with a flat‑plane crank for sharper response, plus a new performance exhaust and aero tweaks. The pair use the same nine‑speed automatic and all‑wheel drive, with 0–60 mph times of about 3.6 seconds for the GLE63 S and 3.9 seconds for the GLS63, electronically limited to 174 mph. They gain adaptive air suspension, off‑road Trail mode, and larger wheels, and go on sale this fall.