# Mercedes-AMG GLS63: Luxury SUV with Sports Car Drive

> The Mercedes-AMG GLS63 combines luxury SUV space with sports car handling, using a flat-plane V-8 engine and advanced chassis tech.
- Title: Mercedes-AMG GLS63: Luxury SUV with Sports Car Drive
- Summary: The Mercedes-AMG GLS63 combines luxury SUV space with sports car handling, using a flat-plane V-8 engine and advanced chassis tech. The 2027 Mercedes-AMG…
- Keywords: mercedes-amg, gl63, sports car, luxury suv, torque-vectoring, flat-plane crank, mercedes-benz, cars, sports, GLS63, Luxury, SUV
- Source: Road & Track — https://roadandtrack.com/reviews/a74202863/the-mercedes-amg-gls63-is-a-luxury-three-row-crossed-with-a-sports-car
- Published: 2026-10-22T01:00:00+00:00
- Read time: 1 min
- Topics: mercedes-amg, gl63, v8, sports car, luxury suv, torque-vectoring, flat-plane crank, mercedes-benz, cars, sports
## New GLS Class Update
The Mercedes-Benz GLS Class features 3000 new or revised components across its 17-foot, 6100-pound SUV body.
## Flat-Plane V-8 Engine
The AMG GLS 63 uses a twin-turbocharged 4.0-liter V-8 producing 603 hp and 627 lb-ft of torque with a new flat-plane crankshaft.
## Engine Efficiency Improvements
The flat-plane crank improves combustion efficiency and emissions, with a new engine block to reduce vibration from the high-winding V-8.
## Exhaust System Innovation
Mercedes engineers adjusted exhaust cam lobes to create a 15-degree difference on the left bank and 20-degree difference on the right bank for smoother sound.
## Powertrain Development
The new V-8 uses a super high-tumble Miller cycle with 47.8 psi boost from twin-scroll turbochargers to maintain power output.
## Chassis and Handling
The GLS 63 features adaptive dampers, 48-volt active anti-roll bars, and torque-vectoring rear differential for sports car-like handling.
## Lateral Acceleration
The GLS 63 achieves 1.0 g of lateral acceleration in corners, a remarkable figure for a three-ton SUV with seven seats.
## Tires and Performance
The GLS 63 uses Michelin Pilot Sport 4 tires with 275/50-21s front and 315/45-21s rear for optimal grip and comfort.
## Luxury Interior Features
The GLS 63 includes standard 12.3-inch displays, heated seats, ventilation, and massage for all rows with optional features.
## Safety Technology
The 2027 GLS features 10 exterior cameras, five radar sensors, and 12 ultrasonic modules for advanced driving aids.
## Next-Generation Tech
Mercedes plans to update the GLS with Level 2 hands-free eyes-on autonomy in the next year, improving over current Level 3 Drive Pilot tech.
## Key takeaway

The 2027 Mercedes-AMG GLS63 delivers 603 hp and 627 lb-ft torque with sports car-like handling, featuring a flat-plane V-8 engine and torque-vectoring rear differential.