Road & Track finds that the twin-turbo 4.0L V8 AMG engine—now hybridized but still visceral—proves the formula that built the brand's reputation hasn't expired. The GLE 63 S Coupe sits at an uncomfortable intersection: luxury SUV practicality meets the last of AMG's naturally aggressive character before full electrification. It's the kind of thing that moves the needle now because in five years, you won't be able to order this.