Detroit Auto Show: Here's What to Expect from Mercedes-AMG GLE 63 Crossover Coupe 4Matic The Mercedes-AMG GLE63 S 4Matic is powered by a 577-horsepower twin-turbo 5.5L V8 engine and a seven-speed automatic transmission that allows the vehicle to reach 60 mph in only 4.2 seconds. by Aaron Mamiit