The Comparative Analysis :

Mercedes SLR McLaren Roadster (07 - 09) vs. Porsche 911 Speedster (19 - ..)

€ 493,900
Mercedes SLR McLaren Roadster (07 - 09) Mercedes SLR McLaren Roadster
€ 269,300
 Porsche 911 Speedster (19 - ..) Porsche 911 Speedster
€ 493,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 269,300

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The Mercedes SLR McLaren Roadster is slightly bigger in every dimension. It's 9.4 cm longer, 5.6 cm wider and 3.1 cm taller than the Porsche 911 Speedster.
Mercedes SLR McLaren Roadster
Porsche 911 Speedster
1281
Blueprint Mercedes SLR McLaren Roadster (07 - 09)
1908
2108
1250
Blueprint Porsche 911 Speedster (19 - ..)
1852
1978
1908 mm
Width
1852 mm
2108 mm
Width Incl. Mirrors
1978 mm
1281 mm
Height
1250 mm
Blueprint Mercedes SLR McLaren Roadster (07 - 09)
2700
4656
Blueprint Porsche 911 Speedster (19 - ..)
2457
4562
4656 mm
Length
4562 mm
2700 mm
Wheelbase
2457 mm

Vehicle Weight

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
1825 kg
Kerb Weight
1540 kg
1980 kg
Gross Vehicle
Weight
1793 kg
Mercedes SLR McLaren Roadster (07 - 09)
Weight Difference:
285 kg
15.62 %
Porsche 911 Speedster (19 - ..)

General

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
C199
Generation
991
Roadster
Car Body Style
Roadster
Unleaded (95 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
5-speed automatic transmission
Transmission
6-speed manual transmission

Engine

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
V8 petrol engine with com­pres­sor
Engine Type
6-cylinder boxer petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
Mercedes-Benz M 155
Engine Series
M 155.980
Engine Code
3
Valves
4
8
Cylinders
6
5439 CC
Engine Capacity
3996 CC
617 bhp
at 6500 rpm
Power
503 bhp
at 8400 rpm
Mercedes SLR McLaren Roadster
617 bhp
503 bhp
Porsche 911 Speedster
780 NM
at 3250 rpm
Max. Torque
470 NM
at 6250 rpm
Mercedes SLR McLaren Roadster
780 NM
470 NM
Porsche 911 Speedster

Performance

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
206 mph
Maximum Speed
193 mph
3.8 sec
Acceleration 0 to 62 mph
4 sec
62 mph 62
mph

53 m
0.000 sec

Mercedes SLR McLaren Roadster

62 mph 62
mph

56 m
0.000 sec

Porsche 911 Speedster

▶ REPLAY
2.96 kg/bhp
Weight-to-Power Ratio
3.06 kg/bhp
Mercedes SLR McLaren Roadster
2.96 kg/bhp
3.06 kg/bhp
Porsche 911 Speedster

Fuel Economy / Emissions

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
Fuel Economy
19 mpg
combined
20 mpg
Mercedes SLR McLaren Roadster
19 mpg
20 mpg
Porsche 911 Speedster
14 mpg
city
14 mpg
26 mpg
motorway
29 mpg
Kraftstoffanzeige
97 L
Fuel Tank Capacity
64 L
Kraftstoffanzeige
416 mi
Range
288 mi
Mercedes SLR McLaren Roadster
416 mi
288 mi
Porsche 911 Speedster
Environmental Impact
274.7 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
261.5 kWh
Mercedes SLR McLaren Roadster
274.7 kWh
261.5 kWh
Porsche 911 Speedster
Euro 4
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP) 36CH, 36CI, 36DG
348 g/km (NEFZ)
CO2 Emissions
310 g/km (WLTP)

Practical Convenience

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
2
Doors
2
2
No. of Seats
2
155 kg
Maximum Payload
253 kg
204 L
Boot Capacity
125 L
No data
Boot Capacity (Seats Down)
No data