The Comparative Analysis :

Mercedes SL 400 7G-TRONIC PLUS (14 - 16) vs. Porsche 911 Speedster (19 - ..)

€ 97,800
Mercedes SL 400 7G-TRONIC PLUS (14 - 16) Mercedes SL 400
€ 269,300
 Porsche 911 Speedster (19 - ..) Porsche 911 Speedster
€ 97,800
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 SL 400 is slightly bigger in every dimension. It's 2.2 inches longer, an inch wider and 2.6 inches taller than the Porsche 911 Speedster.
Mercedes SL 400
Porsche 911 Speedster
51.8
Blueprint Mercedes SL 400 7G-TRONIC PLUS (14 - 16)
73.9
82.6
49.2
Blueprint Porsche 911 Speedster (19 - ..)
72.9
77.9
73.9 in
Width
72.9 in
82.6 in
Width Incl. Mirrors
77.9 in
51.8 in
Height
49.2 in
Blueprint Mercedes SL 400 7G-TRONIC PLUS (14 - 16)
101.8
181.8
Blueprint Porsche 911 Speedster (19 - ..)
96.7
179.6
181.8 in
Length
179.6 in
101.8 in
Wheelbase
96.7 in

Vehicle Weight

Mercedes SL 400
Porsche 911 Speedster
3814 lb
Curb Weight
3395 lb
4652 lb
Gross Vehicle
Weight
3953 lb
Mercedes SL 400 7G-TRONIC PLUS (14 - 16)
Weight Difference:
419 lb
10.99 %
Porsche 911 Speedster (19 - ..)

General

Mercedes SL 400
Porsche 911 Speedster
R231
Generation
991
Roadster
Car Body Style
Roadster
Mid-Grade Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed automatic transmission
Transmission
6-speed manual transmission

Engine

Mercedes SL 400
Porsche 911 Speedster
V6 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
Mercedes-Benz M 276
Engine Series
M 276.825
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
4 L / 196 cu in
328 hp
at 5250 rpm
Power
503 hp
at 8400 rpm
Mercedes SL 400
328 hp
503 hp
Porsche 911 Speedster
354 lb‑ft
at 1600 rpm
Max. Torque
347 lb‑ft
at 6250 rpm
Mercedes SL 400
354 lb‑ft
347 lb‑ft
Porsche 911 Speedster

Performance

Mercedes SL 400
Porsche 911 Speedster
155 mph
Maximum Speed
193 mph
5.2 sec
Acceleration 0 to 62 mph
4 sec
62 mph 62
mph

236 ft
0.000 sec

Mercedes SL 400

62 mph 62
mph

184 ft
0.000 sec

Porsche 911 Speedster

▶ REPLAY
11.63 lb/hp
Weight-to-Power Ratio
6.75 lb/hp
Mercedes SL 400
11.63 lb/hp
6.75 lb/hp
Porsche 911 Speedster

Fuel Economy / Emissions

Mercedes SL 400
Porsche 911 Speedster
Fuel Economy
32 mpg
combined
17 mpg
Mercedes SL 400
32 mpg
17 mpg
Porsche 911 Speedster
24 mpg
city
11 mpg
40 mpg
highway
24 mpg
Kraftstoffanzeige
17.2 gal
Fuel Tank Capacity
16.9 gal
Kraftstoffanzeige
553 mi
Range
288 mi
Mercedes SL 400
553 mi
288 mi
Porsche 911 Speedster
Environmental Impact
138.2 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).
261.5 kWh
Mercedes SL 400
138.2 kWh
261.5 kWh
Porsche 911 Speedster
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP) 36CH, 36CI, 36DG
295 g/mi (NEFZ)
CO2 Emissions
499 g/mi (WLTP)

Practical Convenience

Mercedes SL 400
Porsche 911 Speedster
2
Doors
2
2
No. of Seats
2
838 lb
Maximum Payload
558 lb
14.3 cu ft
Trunk Volume
3.5 cu ft
No data
Cargo Volume (Seats Down)
No data