VS
At a Glance
Power
550 kW
400kW@5500
Torque
1000 Nm
760Nm@2000
Fuel
2.7 l/100km when hybrid battery charged
13.8
Towing
2700 Kg
3500
0-100 km/h
3.8 s
5.4
Engine
4395 cc
5461
Choosing between the BMW XM and the MERCEDES G-GLASS is one of the most common decisions South African car buyers face. The BMW XM delivers 550 kW while the MERCEDES G-GLASS produces 400kW@5500. On fuel, the XM returns 2.7 l/100km when hybrid battery charged + 33.7 kWh/100km combined / 12.8 l/100km when discharged l/100km while the G-GLASS uses 13.8 — important in a market where fuel prices change monthly. Pricing starts at R3 675 000 for the XM and R2 047 000 for the G-GLASS. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Performance
Power Output
550 kW
400kW@5500
Torque
1000 Nm
760Nm@2000
0-100 kph
3.8 s
5.4
Top Speed
290 Km/h
210
Engine & Drivetrain
Engine Capacity
4395 cc
5461
Engine Layout
V
LONGITUDINAL V 8
Cylinders
8
8
Fuel Type
petrol-electric hybrid
UNLEADED
Forced Induction Device
turbocharger
—
Transmission
automatic
AUTOMATIC
Number of Gears
8
7
Drive Wheels
all
ALL
Full Time 4x4
✓ Standard
✓ Standard
Low Range
—
✗
Fuel Economy
Fuel Consumption Average
2.7 l/100km when hybrid battery charged
13.8
Fuel Consumption Urban
—
—
Fuel Consumption Highway
—
—
Fuel Tank Capacity
69 litre + 29.5 kWh l
96
CO2 Emissions
53 when hybrid battery charged g/km
322
Dimensions
Length
5110 mm
4769
Width
2005-2235 mm
1855-2055
Height
1755 mm
1938
Wheelbase
3105 mm
2850
Ground Clearance
220 mm
—
Kerb Weight
2720 DIN / 2795 EU Kg
2550
Doors
5
5
Seats
5
5
Load Volume
527-1820 l
—
Towing & Payload
Towing Capacity
2700 Kg
3500
Load Capacity
580 l
2250
Safety
ABS
✓ Standard
✓ Standard
EBD
✓ Standard
✓ Standard
Brake Assist
✓ Standard
—
Stability Control
✓ Standard
ESP
Traction Control
✓ Standard
✓ Standard
Airbag Count
6
2
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✗
Curtain Airbags
✓ Standard
✗
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Satellite Navigation
✓ Standard
✓ Standard
Reversing Camera
✓ Standard
—
Park Distance Rear
✓ Standard
✓ Standard
Park Distance Front
✓ Standard
✗
Sunroof
—
Optional
Heated Seats
✓ Standard
BOTH FRONT
Electric Seat Adjustment
—
✓ Standard
Keyless Entry
✓ Standard
✗
Tow Bar
✓ Standard
—
Alloy Wheels
✓ Standard
✗
Warranty & Service
Warranty Period
2 vehicle / 8 hybrid battery
24
Warranty Distance
unlimited vehicle / 100000 hybrid batter
—
Service Plan
—
M
Service Intervals
service interval indicator
15000
The Verdict
Which Wins?
Overall Winner
MERCEDES G-GLASS
2 / 4 categories
Performance
XM
Fuel Economy
Tied
Value
G-GLASS
Practicality
G-GLASS
Pros & Cons
BMW XM
Quicker 0-100 km/h (3.8 ss)
Higher starting price
MERCEDES G-GLASS
Lower starting price (R2 047 000)
Higher towing capacity (3500)
Few notable weaknesses
Frequently Asked Questions
Which is more fuel efficient, the XM or G-GLASS?
The XM uses 2.7 l/100km when hybrid battery charged + 33.7 kWh/100km combined / 12.8 l/100km when discharged l/100km and the G-GLASS uses 13.8 on the combined cycle. In South African conditions with a mix of highway and urban driving, real-world figures will be slightly higher.
Which has more power, the XM or G-GLASS?
The XM produces 550 kW and 1000 Nm of torque while the G-GLASS delivers 400kW@5500 and 760Nm@2000 of torque. They produce similar power outputs.
What is the price difference between the XM and G-GLASS?
The XM starts from R3 675 000 and the G-GLASS from R2 047 000. The G-GLASS is cheaper by R1 628 000 at this variant level. Final on-the-road pricing varies by dealer and specification.
Which has a higher towing capacity, the XM or G-GLASS?
The XM has a braked towing capacity of 2700 Kg and the G-GLASS can tow 3500. Always verify towing limits in the owner's manual before hitching a trailer.
Should I buy the XM or the G-GLASS?
It depends on your priorities. If fuel economy matters most, check the L/100km figures above. If you need towing capacity, compare the towing ratings. For day-to-day South African driving - load shedding runs, potholed roads, school runs and highway commutes - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.