The Comparative Analysis :

Mercedes SLR McLaren Roadster (07 - 09) vs. Porsche 911 Speedster PDK (10 - 12)

€ 493,900
Mercedes SLR McLaren Roadster (07 - 09) Mercedes SLR McLaren Roadster
€ 201,700
 Porsche 911 Speedster PDK (10 - 12) Porsche 911 Speedster
€ 493,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 201,700

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

Vehicle Dimensions

The dimensions of these vehicles differ considerably. The Mercedes SLR McLaren Roadster is 8.5 inches longer, 2.2 inches wider and 0.1 inches lower than the Porsche 911 Speedster.
Mercedes SLR McLaren Roadster
Porsche 911 Speedster
50.4
Blueprint Mercedes SLR McLaren Roadster (07 - 09)
75.1
83
50.6
Blueprint Porsche 911 Speedster PDK (10 - 12)
72.9
80.8
75.1 in
Width
72.9 in
83 in
Width Incl. Mirrors
80.8 in
50.4 in
Height
50.6 in
Blueprint Mercedes SLR McLaren Roadster (07 - 09)
106.3
183.3
Blueprint Porsche 911 Speedster PDK (10 - 12)
92.5
174.8
183.3 in
Length
174.8 in
106.3 in
Wheelbase
92.5 in

Vehicle Weight

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
4023 lb
Curb Weight
3560 lb
4365 lb
Gross Vehicle
Weight
4233 lb
Mercedes SLR McLaren Roadster (07 - 09)
Weight Difference:
463 lb
11.51 %
Porsche 911 Speedster PDK (10 - 12)

General

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
C199
Generation
997
Roadster
Car Body Style
Roadster
Mid-Grade Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
5-speed automatic transmission
Transmission
7-speed dual clutch transmission

Engine

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
V8 gasoline engine with com­pres­sor
Engine Type
6-cylinder boxer gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
Mercedes-Benz M 155
Engine Series
M 155.980
Engine Code
3
Valves
4
8
Cylinders
6
5.4 L / 264 cu in
Displacement
3.8 L / 186 cu in
617 hp
at 6500 rpm
Power
402 hp
at 7300 rpm
Mercedes SLR McLaren Roadster
617 hp
402 hp
Porsche 911 Speedster
575 lb‑ft
at 3250 rpm
Max. Torque
310 lb‑ft
at 4200 rpm
Mercedes SLR McLaren Roadster
575 lb‑ft
310 lb‑ft
Porsche 911 Speedster

Performance

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

174 ft
0.000 sec

Mercedes SLR McLaren Roadster

62 mph 62
mph

200 ft
0.000 sec

Porsche 911 Speedster

▶ REPLAY
6.52 lb/hp
Weight-to-Power Ratio
8.86 lb/hp
Mercedes SLR McLaren Roadster
6.52 lb/hp
8.86 lb/hp
Porsche 911 Speedster

Fuel Economy / Emissions

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
Fuel Economy
16 mpg
combined
23 mpg
Mercedes SLR McLaren Roadster
16 mpg
23 mpg
Porsche 911 Speedster
11 mpg
city
15 mpg
22 mpg
highway
32 mpg
Kraftstoffanzeige
25.6 gal
Fuel Tank Capacity
16.9 gal
Kraftstoffanzeige
416 mi
Range
386 mi
Mercedes SLR McLaren Roadster
416 mi
386 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).
195.2 kWh
Mercedes SLR McLaren Roadster
274.7 kWh
195.2 kWh
Porsche 911 Speedster
Euro 4
Emission Standard
Euro 5
560 g/mi (NEFZ)
CO2 Emissions
389 g/mi (NEFZ)

Practical Convenience

Mercedes SLR McLaren Roadster
Porsche 911 Speedster
2
Doors
2
2
No. of Seats
2
342 lb
Maximum Payload
672 lb
5.8 cu ft
Trunk Volume
3.8 cu ft
No data
Cargo Volume (Seats Down)
No data