VS
At a Glance
Power
430 kW
375 kW
Torque
800 Nm
450 Nm
Fuel
13.4 l/100km
15.2 l/100km
Towing
—
—
0-100 km/h
3.6 s
3.9 s
Engine
3982 cc
3996 cc
Choosing between the Mercedes-AMG SL and the Porsche 911 is one of the most common decisions South African car buyers face. The Mercedes-AMG SL delivers 430 kW while the Porsche 911 produces 375 kW. On fuel, the SL returns 13.4 l/100km while the 911 uses 15.2 l/100km — important in a market where fuel prices change monthly. Pricing starts at R3 982 166 for the SL and R4 722 000 for the 911. 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
430 kW
375 kW
Torque
800 Nm
450 Nm
0-100 kph
3.6 s
3.9 s
Top Speed
315 Km/h
313 Km/h
Engine & Drivetrain
Engine Capacity
3982 cc
3996 cc
Engine Layout
V
boxer
Cylinders
8
6
Fuel Type
petrol
petrol
Forced Induction Device
turbocharger
—
Transmission
automatic
manual
Number of Gears
9
6
Drive Wheels
all
rear
Full Time 4x4
✓ Standard
—
Fuel Economy
Fuel Consumption Average
13.4 l/100km
15.2 l/100km
Fuel Tank Capacity
70 l
63 l
CO2 Emissions
334 g/km
347 g/km
Dimensions
Length
4705 mm
4570 mm
Width
1915-2100 mm
1852-2033 mm
Height
1354 mm
1279 mm
Wheelbase
2700 mm
2457 mm
Ground Clearance
—
76 mm
Kerb Weight
1895 DIN / 1970 EU Kg
1462 DIN / 1537 EU Kg
Doors
2
2
Seats
2+2
2
Load Volume
213 l
135 front + 373 rear l
Towing & Payload
Towing Capacity
—
—
Load Capacity
350 l
303 l
Safety
ABS
✓ Standard
✓ Standard
EBD
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Airbag Count
6 (opt 8)
6
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
Optional
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
Optional
✓ Standard
Adaptive Cruise Control
Optional
Optional
Bluetooth
✓ Standard
✓ Standard
Satellite Navigation
✓ Standard
✓ Standard
Reversing Camera
Optional
✓ Standard
Park Distance Rear
✓ Standard
Optional
Park Distance Front
✓ Standard
—
Heated Seats
✓ Standard
Optional
Keyless Entry
✓ 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
Mercedes-AMG SL
4 / 4 categories
Performance
SL
Fuel Economy
SL
Value
SL
Practicality
SL
Pros & Cons
Mercedes-AMG SL
More powerful engine (430 kW)
Better fuel economy (13.4 l/100km)
Lower starting price (R3 982 166)
Quicker 0-100 km/h (3.6 ss)
Few notable weaknesses
Porsche 911
Well-rounded specification
Higher fuel consumption (15.2 l/100km)
Less power than rival (375 kW vs 430 kW)
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the SL or 911?
The SL uses 13.4 l/100km and the 911 uses 15.2 l/100km on the combined cycle. The SL 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 SL or 911?
The SL produces 430 kW and 800 Nm of torque while the 911 delivers 375 kW and 450 Nm of torque. The SL is the more powerful option.
What is the price difference between the SL and 911?
The SL starts from R3 982 166 and the 911 from R4 722 000. The SL is cheaper by R739 834 at this variant level. Final on-the-road pricing varies by dealer and specification.
Which has a higher towing capacity, the SL or 911?
The SL has a braked towing capacity of 0 Kg and the 911 can tow not specified. Always verify towing limits in the owner's manual before hitching a trailer.
Should I buy the SL or the 911?
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.