The Comparative Analysis :
Mercedes SL 500 7G-TRONIC (08 - 11) vs. BMW i8 Roadster (18 - ..)
€ 111,100
€ 155,000
€ 111,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 155,000
ⓘ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 SL 500 is 4.8 inches shorter, 4.8 inches narrower and 0.4 inches taller than the BMW i8 Roadster.
Mercedes SL 500
BMW i8 Roadster
51.1
71.7
81.7
50.7
76.5
87.3
71.7 in
Width
76.5 in
81.7 in
Width Incl. Mirrors
87.3 in
51.1 in
Height
50.7 in
100.8
179.8
110.2
184.6
179.8 in
Length
184.6 in
100.8 in
Wheelbase
110.2 in
Vehicle Weight
Mercedes SL 500
BMW i8 Roadster
4211 lb
Curb Weight
3682 lb
4861 lb
Gross Vehicle
Weight
Weight
4332 lb
Weight Difference:
529 lb
12.56 %
General
Mercedes SL 500
BMW i8 Roadster
R230
Generation
I15
Roadster
Car Body Style
Roadster
Mid-Grade Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
On-demand four-wheel drive (4WD) with automatic engagement
7-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
Mercedes SL 500
BMW i8 Roadster
V8 gasoline engine (naturally aspirated engine)
Engine Type
3-cylinder plug-in hybrid gasoline engine with turbocharger
Mercedes-Benz M 273
Engine Series
BMW B38
M 273.965
Engine Code
B38-K15
4
Valves
4
8
Cylinders
3
5.5 L / 269 cu in
Displacement
1.5 L / 73 cu in
383 hp
at 6000 rpm
Power
369 hp
at 5800 rpm
Mercedes SL 500
383 hp
369 hp
BMW i8 Roadster
391 lb‑ft
at 2800 rpm
Max. Torque
420 lb‑ft
at 3700 rpm
Mercedes SL 500
391 lb‑ft
420 lb‑ft
BMW i8 Roadster
Performance
Mercedes SL 500
BMW i8 Roadster
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
246 ft
0.000 sec
Mercedes SL 500
62 mph
62
mph
mph
210 ft
0.000 sec
BMW i8 Roadster
▶ REPLAY
10.99 lb/hp
Weight-to-Power Ratio
9.98 lb/hp
Mercedes SL 500
10.99 lb/hp
9.98 lb/hp
BMW i8 Roadster
Fuel Economy / Emissions
Mercedes SL 500
BMW i8 Roadster
Fuel Economy
20 mpg
combined
118 mpg
Mercedes SL 500
20 mpg
118 mpg
BMW i8 Roadster
13 mpg
city
No data
28 mpg
highway
No data
21.1 gal
Fuel Tank Capacity
7.9 gal
418 mi
Range
932 mi
Mercedes SL 500
418 mi
932 mi
BMW i8 Roadster
Environmental Impact
225.5 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).
37.8 kWh
Mercedes SL 500
225.5 kWh
37.8 kWh
BMW i8 Roadster
Euro 4 / Euro 5
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
457 g/mi (NEFZ)
CO2 Emissions
80 g/mi (WLTP)
Practical Convenience
Mercedes SL 500
BMW i8 Roadster
2
Doors
3
2
No. of Seats
2
650 lb
Maximum Payload
650 lb
9.6 cu ft
Trunk Volume
2.5 cu ft
No data
Cargo Volume (Seats Down)
No data
