The Comparative Analysis :
Porsche 911 Speedster PDK (10 - 12) vs. Mercedes SL 65 AMG SPEEDSHIFT PLUS (16 - 18)
€ 201,700

€ 240,200

€ 201,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 240,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche 911 Speedster is considerably smaller in every dimension. It's 7.6 inches shorter, an inch narrower and 0.6 inches lower than the Mercedes SL 65 AMG.
Porsche 911 Speedster
Mercedes SL 65 AMG
50.6
72.9
80.8
51.2
73.9
82.6
72.9 in
Width
73.9 in
80.8 in
Width Incl. Mirrors
82.6 in
50.6 in
Height
51.2 in
92.5
174.8
101.8
182.4
174.8 in
Length
182.4 in
92.5 in
Wheelbase
101.8 in
Vehicle Weight
Porsche 911 Speedster
Mercedes SL 65 AMG
3560 lb
Curb Weight
4299 lb
4233 lb
Gross Vehicle
Weight
Weight
4872 lb

Weight Difference:
739 lb
17.19 %

General
Porsche 911 Speedster
Mercedes SL 65 AMG
997
Generation
R231
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed dual clutch transmission
Transmission
7-speed automatic transmission
Engine
Porsche 911 Speedster
Mercedes SL 65 AMG
6-cylinder boxer gasoline engine (naturally aspirated engine)
Engine Type
V12 gasoline engine with two turbochargers (biturbo)
Engine Series
Mercedes-Benz M 279
Engine Code
M 279.981

4
Valves
4
6
Cylinders
12
3.8 L / 186 cu in
Displacement
6 L / 294 cu in
402 hp
at 7300 rpm
Power
621 hp
at 4800 rpm
Porsche 911 Speedster
402 hp
621 hp
Mercedes SL 65 AMG
310 lb‑ft
at 4200 rpm
Max. Torque
738 lb‑ft
at 2300 rpm
Porsche 911 Speedster
310 lb‑ft
738 lb‑ft
Mercedes SL 65 AMG
Performance
Porsche 911 Speedster
Mercedes SL 65 AMG
190 mph
Maximum Speed
155 mph
4.4 sec
Acceleration 0 to 62 mph
4 sec
62 mph
62
mph
mph
200 ft
0.000 sec

Porsche 911 Speedster
62 mph
62
mph
mph
184 ft
0.000 sec

Mercedes SL 65 AMG
▶ REPLAY
8.86 lb/hp
Weight-to-Power Ratio
6.92 lb/hp
Porsche 911 Speedster
8.86 lb/hp
6.92 lb/hp
Mercedes SL 65 AMG
Fuel Economy / Emissions
Porsche 911 Speedster
Mercedes SL 65 AMG
Fuel Economy
23 mpg
combined
20 mpg
Porsche 911 Speedster
23 mpg
20 mpg
Mercedes SL 65 AMG
15 mpg
city
14 mpg
32 mpg
highway
27 mpg
16.9 gal
Fuel Tank Capacity
19.8 gal
386 mi
Range
391 mi
Porsche 911 Speedster
386 mi
391 mi
Mercedes SL 65 AMG
Environmental Impact
195.2 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).
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).
225.5 kWh
Porsche 911 Speedster
195.2 kWh
225.5 kWh
Mercedes SL 65 AMG
Euro 5
Emission Standard
Euro 6b (NEFZ)
389 g/mi (NEFZ)
CO2 Emissions
449 g/mi (NEFZ)
Practical Convenience
Porsche 911 Speedster
Mercedes SL 65 AMG
2
Doors
2
2
No. of Seats
2
672 lb
Maximum Payload
573 lb
3.8 cu ft
Trunk Volume
14.3 cu ft





No data
Cargo Volume (Seats Down)
No data