Technical specifications
| Clear list | Mercedes GLS | BMW X6 M |
| Totals | Mercedes GLS 5.5 (63 AMG) × | BMW X6 M 4.4 × |
| Mark | Mercedes | BMW |
| Model | GLS 5.5 (63 AMG) | X6 M 4.4 |
| Year | 2015 | 2015 |
| Number of doors/seats | 5/7 | 5/5 |
| Body type | Wagon | Wagon |
| Unladen Weight | 2500 | 2340 |
| Gross Weight Limit | - | 2950 |
| Top Speed, km/h | 250 | 250 |
| Acceleration 0-100 kph | 4.6 | 4.2 |
| Minimum turning radius, m | 6.2 | 6.4 |
| Cargo Volume, min/max, L | 680/2300 | 550/1525 |
| Dimensions specifications, mm | Mercedes GLS 5.5 (63 AMG) × | BMW X6 M 4.4 × |
| Length | 5130 | 4909 |
| Width | 1934 | 1989 |
| Height | 1850 | 1689 |
| Wheelbase | 3075 | 2933 |
| Front/rear Track | 1655/1675 | 1666/1667 |
| Ground clearance | - | - |
| Engine specifications | Mercedes GLS 5.5 (63 AMG) × | BMW X6 M 4.4 × |
| Type | Gasoline Direct Injection, turbocharging | Gasoline Direct Injection, turbocharging |
| Displacement, cm3 | 5461 | 4395 |
| Compression ratio | 10 | 10 |
| Number and arrangement of cylinders | V8 | V8 |
| The diameter of the cylinder x stroke, mm | 98x90.5 | 89x88.3 |
| Number of valves | 32 | 32 |
| Power, hp/rpm | 585/5500 | 575/6000–6500 |
| Max torque, Nm/RPM | 760/1750-5250 | 750/2200–5000 |
| Transmission specifications | Mercedes GLS 5.5 (63 AMG) × | BMW X6 M 4.4 × |
| Gearbox | 7-speed automatic | 8-speed automatic |
| Drive Type | Four-wheel drive | Four-wheel drive |
| Suspension specifications | Mercedes GLS 5.5 (63 AMG) × | BMW X6 M 4.4 × |
| Front | Upper and lower A-arm (double wishbone) | Upper and lower A-arm (double wishbone) |
| Rear | multi-link suspensions | multi-link suspensions |
| Tire Size | 295/40 R21 | 285/40 R20, 325/35 R20 |
| Disk | 5x112 ET47 d66.5
| 5x120 ET40 d72.6
|
| Brakes specifications | Mercedes GLS 5.5 (63 AMG) × | BMW X6 M 4.4 × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Ventilated discs | Ventilated discs |
| Fuel consumption specifications, L/100 km | Mercedes GLS 5.5 (63 AMG) × | BMW X6 M 4.4 × |
| City | 16 | 14.7 |
| Highway | 10.3 | 9 |
| Combined | 12.5 | 11.1 |
| Fuel | 95 | 95 |
| Tank, L | 100 | 85 |
| Clear list | Mercedes GLS | BMW X6 M |
