New Mercedes-Benz GLS 63 AMG Keeps Its 612 HP V8 Brand Mercedes-Benz Mercedes-AMG The 2027 Mercedes-AMG GLS 63 4MATIC+ keeps the hand-built 4.0-litre twin-turbo V8, retains 612 hp, and adds a revised 48-volt mild-hybrid system. This remains a three-row luxury SUV with sports-car acceleration, a 280 km/h maximum speed,... By Panorica, 12 July, 2026