Vehicle Overview
Key specifications and features at a glance
Year2019 - Present
Engine2989
Power270
FuelDiesel
TransmissionAutomatic
Seating7
Year2019 - Present
Engine2993
Power259
FuelDiesel
TransmissionAutomatic
Seating7
Detailed Specifications
Complete technical specifications comparison
Best comparable values are highlighted in green.
| Specification | GLS 450 d | X7 xDrive40d |
|---|---|---|
| Engine Capacity | 2989 | 2993 |
| Engine Code | OM656 | B57 |
| Cylinder Configuration | Inline | Inline |
| Number of Cylinders | 6 | 6 |
| Aspiration | Turbocharged | — |
| Power | 270 | 259 |
| Torque | 750 | 720 |
| Top Speed | 250 | 245 |
| Drive Type | AWD | AWD |
| Fuel Economy City | — | 9.6 |
| Fuel Economy Highway | — | 7.1 |
| Fuel Economy Combined | 7.8 | 8.0 |
| Emission Standard | Euro 6 | — |
| Tyre Size | 275 / 45 R21 front; 315 / 40 R21 rear | 275 / 40 R22 front; 315 / 35 R22 rear |
| Wheel Size | 21 | 22 |
| Number of Doors | 5 | 5 |
| Seating Capacity | 7 | 7 |
| Front Brakes | Ventilated disc | Ventilated disc |
| Rear Brakes | Ventilated disc | Ventilated disc |
| Front Suspension | Multi-link air suspension | Double-wishbone adaptive air suspension |
| Rear Suspension | Multi-link air suspension | Multi-link adaptive air suspension |
| Steering Type | Electric power steering | Electric power steering |
| Number of Airbags | 9 | 7 |
| Towing Capacity | 3500 | 3500 |
| Turning Circle | 12.5 | 13.0 |
Dimensions & Weight
Physical specifications and measurements
Best comparable values are highlighted in green.
| Dimension | GLS 450 d | X7 xDrive40d |
|---|---|---|
| Fuel Tank Capacity | 90 | 80 |
| Length | 5209 | 5181 |
| Width | 1956 | 2000 |
| Height | 1823 | 1835 |
| Wheelbase | 3135 | 3105 |
| Ground Clearance | 200 | — |
| Kerb Weight | 2570 | 2565 |
| Boot Space | 355 | 300 |
Features Comparison
Standard and optional equipment comparison
Safety
| Feature | GLS 450 d | X7 xDrive40d |
|---|---|---|
| Adaptive Cruise Control | ||
| Autonomous Emergency Braking | ||
| Lane Departure Warning | ||
| Lane Keep Assist | ||
| Blind Spot Monitoring | ||
| Rear Cross Traffic Alert | ||
| Traffic Sign Recognition | ||
| Driver Attention Monitor | ||
| Front Parking Sensors | ||
| Rear Parking Sensors | ||
| 360 Camera | ||
| Reverse Camera | ||
| Hill Start Assist | ||
| Tyre Pressure Monitoring System | ||
| Rear Occupant Alert |
Comfort
| Feature | GLS 450 d | X7 xDrive40d |
|---|---|---|
| Keyless Entry | ||
| NFC Keyless Entry | ||
| Push Button Start | ||
| Dual-Zone Climate Control | ||
| Tri-Zone Climate Control | ||
| Heated Front Seats | ||
| Ventilated Front Seats | ||
| Heated Steering Wheel | ||
| Power Tailgate | ||
| Remote Start | ||
| Power Driver Seat | ||
| Power Passenger Seat | ||
| Memory Seats | ||
| Auto Dimming Mirror | ||
| Rain Sensing Wipers | ||
| Adaptive Headlights |
Interior Exterior
| Feature | GLS 450 d | X7 xDrive40d |
|---|---|---|
| Leather Seats | ||
| Fabric Seats | ||
| Ambient Lighting | ||
| Sunroof | ||
| Panoramic Roof | ||
| LED Headlights | ||
| Matrix LED Headlights | ||
| Daytime Running Lights | ||
| Alloy Wheels | ||
| Roof Rails | ||
| Rear Privacy Glass | ||
| Power Folding Mirrors |
Technology
| Feature | GLS 450 d | X7 xDrive40d |
|---|---|---|
| Touchscreen Display | ||
| Digital Instrument Cluster | ||
| Apple CarPlay | ||
| Android Auto | ||
| Wireless Apple CarPlay | ||
| Wireless Android Auto | ||
| Wireless Phone Charging | ||
| Built-in Navigation | ||
| Premium Audio System | ||
| Head-Up Display | ||
| USB-C Ports | ||
| Bluetooth Connectivity | ||
| Voice Control | ||
| Connected Car App |
Diesel Utility
| Feature | GLS 450 d | X7 xDrive40d |
|---|---|---|
| Trailer Sway Control | ||
| Side Steps | ||
| Tow Bar Prep |
Pros & Cons
Strengths and weaknesses of each vehicle
Mercedes-Benz GLS 450 d
Pros
- +Strong diesel torque
- +Seven-seat practicality
- +Excellent towing capacity
- +Comfortable air suspension
- +Efficient highway performance
Cons
- −Very high purchase price
- −Large urban footprint
- −Heavy kerb weight
- −Costly tyres and servicing
- −Small boot with seven seats
BMW X7 xDrive40d
Pros
- +Strong 720 Nm system torque
- +Efficient for a large SUV
- +Luxurious seven-seat cabin
- +Strong 3500 kg towing capacity
- +Comfortable adaptive air suspension
Cons
- −High purchase price
- −Large exterior dimensions
- −Heavy kerb weight
- −Diesel requires AdBlue
- −Costly tyres and servicing
Which one should you buy?
Best for Value: Mercedes-Benz GLS 450 d
Leads this comparison on best for value with a score of 55.
Best for Practicality / Space: Mercedes-Benz GLS 450 d
Boot and practicality-related dimensions score well for everyday use.
Our Recommendation
Choose Mercedes-Benz GLS 450 d if: You prioritise performance and responsive power.
Choose BMW X7 xDrive40d if: You prioritise performance and responsive power.
Bottom Line: Mercedes-Benz GLS 450 d leads on value and Mercedes-Benz GLS 450 d leads on practicality.
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