VS
At a Glance
Power
270 engine kW
368 kW
Torque
750 Nm
660 Nm
Fuel
9.4 l/100km
12.3 l/100km
Towing
3500 Kg
3500 Kg
0-100 km/h
5.8 s
4.4 s
Engine
2989 cc
3996 cc
Choosing between the Mercedes-Benz G-Class and the Porsche Cayenne is one of the most common decisions South African car buyers face. The Mercedes-Benz G-Class delivers 270 engine kW while the Porsche Cayenne produces 368 kW. On fuel, the G-Class returns 9.4 l/100km while the Cayenne uses 12.3 l/100km — important in a market where fuel prices change monthly. Pricing starts at R3 561 203 for the G-Class and R2 672 000 for the Cayenne. 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
270 engine kW
368 kW
Torque
750 Nm
660 Nm
0-100 kph
5.8 s
4.4 s
Top Speed
210 Km/h
275 Km/h
Engine & Drivetrain
Engine Capacity
2989 cc
3996 cc
Engine Layout
inline
V
Cylinders
6
8
Fuel Type
diesel
petrol
Forced Induction Device
turbocharger
turbocharger
Transmission
automatic
automatic
Number of Gears
9
8
Drive Wheels
all
all
Full Time 4x4
✓ Standard
✓ Standard
Low Range
✓ Standard
—
Fuel Economy
Fuel Consumption Average
9.4 l/100km
12.3 l/100km
Fuel Tank Capacity
100 l
90 l
CO2 Emissions
246 g/km
280 g/km
Dimensions
Length
4825 mm
4930 mm
Width
1913-2187 mm
1983-2194 mm
Height
1973 mm
1674 mm
Wheelbase
2890 mm
2895 mm
Ground Clearance
—
189-234 mm
Kerb Weight
2480 DIN / 2555 EU Kg
2190 DIN / 2265 EU Kg
Doors
5
5
Seats
5
5
Load Volume
640-2010 l
656-772-1708 l
Towing & Payload
Towing Capacity
3500 Kg
3500 Kg
Load Capacity
645 l
700 l
Safety
ABS
✓ Standard
✓ Standard
EBD
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Airbag Count
9
8 (opt 10)
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
Optional
Adaptive Cruise Control
✓ Standard
Optional
Bluetooth
✓ Standard
✓ Standard
Satellite Navigation
✓ Standard
✓ Standard
Reversing Camera
✓ Standard
Optional
Park Distance Rear
✓ Standard
✓ Standard
Park Distance Front
✓ Standard
✓ Standard
Sunroof
✓ Standard
Optional
Heated Seats
Optional
✓ Standard
Keyless Entry
Optional
Optional
Tow Bar
✓ Standard
Optional
Alloy Wheels
✓ Standard
✓ Standard
Warranty & Service
Warranty Period
2
2
Warranty Distance
unlimited Km
unlimited Km
Service Intervals
service interval indicator
15000
The Verdict
Which Wins?
Overall Winner
Porsche Cayenne
2 / 4 categories
Performance
Cayenne
Fuel Economy
G-Class
Value
Cayenne
Practicality
Tied
Pros & Cons
Mercedes-Benz G-Class
Better fuel economy (9.4 l/100km)
Less power than rival (270 engine kW vs 368 kW)
Higher starting price
Porsche Cayenne
More powerful engine (368 kW)
Lower starting price (R2 672 000)
Quicker 0-100 km/h (4.4 ss)
Higher fuel consumption (12.3 l/100km)
Frequently Asked Questions
Which is more fuel efficient, the G-Class or Cayenne?
The G-Class uses 9.4 l/100km and the Cayenne uses 12.3 l/100km on the combined cycle. The G-Class is the more fuel-efficient choice. In South African conditions with a mix of highway and urban driving, real-world figures will be slightly higher.
Which has more power, the G-Class or Cayenne?
The G-Class produces 270 engine kW and 750 Nm of torque while the Cayenne delivers 368 kW and 660 Nm of torque. The Cayenne is the more powerful option.
What is the price difference between the G-Class and Cayenne?
The G-Class starts from R3 561 203 and the Cayenne from R2 672 000. The Cayenne is cheaper by R889 203 at this variant level. Final on-the-road pricing varies by dealer and specification.
Which has a higher towing capacity, the G-Class or Cayenne?
The G-Class has a braked towing capacity of 3500 Kg and the Cayenne can tow 3500 Kg. Always verify towing limits in the owner's manual before hitching a trailer.
Should I buy the G-Class or the Cayenne?
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.