Vehicle Overview
Key specifications and features at a glance
Detailed Specifications
Complete technical specifications comparison
Best comparable values are highlighted in green.
| Specification | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| Engine Capacity | 4395 | 3982 |
| Engine Code | S68 | M177 |
| Cylinder Configuration | V | V |
| Number of Cylinders | 8 | 8 |
| Aspiration | Twin-turbocharged | Twin-turbocharged |
| Battery Capacity Gross | 29.5 | — |
| Battery Capacity Usable | 25.7 | — |
| Battery Type | Lithium-ion | — |
| Energy Consumption | 28.9 | — |
| Power | 360 | 430 |
| Torque | 650 | 850 |
| Top Speed | 250 | 220 |
| AC Charging Power | 11 | — |
| Heat Pump | Yes | — |
| Drive Type | AWD | 4WD |
| Fuel Economy City | — | 21.3 |
| Fuel Economy Highway | — | 11.8 |
| Fuel Economy Combined | 2.7 | 15.3 |
| Emission Standard | Euro 6 | Euro 6 |
| Tyre Size | 275 / 35 R23 front; 315 / 30 R23 rear | 295 / 40 R22 |
| Wheel Size | 23 | 22 |
| Number of Doors | 5 | 5 |
| Seating Capacity | 5 | 5 |
| Front Brakes | Ventilated disc | Ventilated discs |
| Rear Brakes | Ventilated disc | Ventilated discs |
| Front Suspension | Double-wishbone adaptive air suspension | Independent double wishbone with adaptive damping |
| Rear Suspension | Five-link adaptive air suspension | Rigid axle with adaptive damping |
| Steering Type | Electric power steering | Electric rack and pinion |
| Number of Airbags | 8 | — |
| Towing Capacity | 2700 | 3175 |
| Turning Circle | 12.5 | 13.5 |
Dimensions & Weight
Physical specifications and measurements
Best comparable values are highlighted in green.
| Dimension | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| Fuel Tank Capacity | 69 | 100 |
| Length | 5110 | 4873 |
| Width | 2005 | 1984 |
| Height | 1755 | 1979 |
| Wheelbase | 3105 | 2890 |
| Ground Clearance | 220 | 282 |
| Kerb Weight | 2785 | 2637 |
| Boot Space | 527 | 640 |
Features Comparison
Standard and optional equipment comparison
Safety
| Feature | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| 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 | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| 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 | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| 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 | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| 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 |
Charging & Battery Tech
| Feature | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| AC home charging | ||
| DC fast-charge capable | ||
| Scheduled charging | ||
| Charging Cable Included | ||
| Portable Charger Included | ||
| Wall Charger Compatible | ||
| Battery Preconditioning | ||
| Heat Pump |
EV / Hybrid Drive Features
| Feature | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| Regenerative braking | ||
| Drive mode select | ||
| EV / hybrid drive modes | ||
| One Pedal Driving | ||
| V2L | ||
| V2G |
PHEV / EV-specific features
| Feature | XM | G-Class Mercedes-AMG G 63 |
|---|---|---|
| EV Drive Mode | ||
| Hybrid Drive Mode | ||
| Charge Mode | ||
| Charge Scheduling | ||
| DC Fast Charging Support |
Pros & Cons
Strengths and weaknesses of each vehicle
BMW XM XM
Pros
- +Powerful 480 kW hybrid system
- +Useful electric-only range
- +Luxurious five-seat cabin
- +Strong 2700 kg towing capacity
- +Advanced adaptive suspension
Cons
- −Very high purchase price
- −Extremely heavy kerb weight
- −Large for urban parking
- −High fuel use when uncharged
- −Standard XM is discontinued
Mercedes-Benz G-Class Mercedes-AMG G 63
Pros
- +Exceptional V8 performance
- +Highly capable permanent four-wheel drive
- +Three locking differentials
- +Luxurious and distinctive cabin
- +Strong resale demand
Cons
- −Extremely high purchase price
- −Very high fuel consumption
- −Expensive tyres and servicing
- −Large and difficult to park
- −Heavy kerb weight
Which one should you buy?
Best for Performance: BMW XM XM
System power around 480 kW supports a solid performance score. Combined system power is prioritised for plug-in hybrid scoring.
Best for Efficiency: Mercedes-Benz G-Class Mercedes-AMG G 63
Combined fuel economy figures support the efficiency score for this powertrain.
Best for Practicality / Space: Mercedes-Benz G-Class Mercedes-AMG G 63
Boot and practicality-related dimensions score well for everyday use.
Best Overall: Mercedes-Benz G-Class Mercedes-AMG G 63
Across performance, value, efficiency, and practicality, this variant shows a balanced overall profile.
Our Recommendation
Choose BMW XM XM if: You prioritise performance and responsive power.
Choose Mercedes-Benz G-Class Mercedes-AMG G 63 if: You prioritise performance and responsive power.
Bottom Line: BMW XM XM leads on performance, Mercedes-Benz G-Class Mercedes-AMG G 63 leads on efficiency and Mercedes-Benz G-Class Mercedes-AMG G 63 leads on practicality.
Ready to Find Your Perfect Vehicle?
Browse thousands of listings or compare more vehicles to make the best decision