The Comparative Analysis :
BMW i8 Roadster (18 - ..) vs. Mercedes SL 300 7G-TRONIC (09 - 11)
€ 155,000
€ 82,600
€ 155,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 82,600
ⓘ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 BMW i8 Roadster is 4.8 inches longer, 4.8 inches wider and 1.1 inches lower than the Mercedes SL 300.
BMW i8 Roadster
Mercedes SL 300
50.7
76.5
87.3
51.9
71.7
81.7
76.5 in
Width
71.7 in
87.3 in
Width Incl. Mirrors
81.7 in
50.7 in
Height
51.9 in
110.2
184.6
100.8
179.8
184.6 in
Length
179.8 in
110.2 in
Wheelbase
100.8 in
Vehicle Weight
BMW i8 Roadster
Mercedes SL 300
3682 lb
Curb Weight
4001 lb
4332 lb
Gross Vehicle
Weight
Weight
4652 lb
Weight Difference:
320 lb
8 %
General
BMW i8 Roadster
Mercedes SL 300
I15
Generation
R230
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded
On-demand four-wheel drive (4WD) with automatic engagement
Drivetrain
Rear-wheel drive
6-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW i8 Roadster
Mercedes SL 300
3-cylinder plug-in hybrid gasoline engine with turbocharger
Engine Type
V6 gasoline engine (naturally aspirated engine)
BMW B38
Engine Series
Mercedes-Benz M 272
B38-K15
Engine Code
M 272.949
4
Valves
4
3
Cylinders
6
1.5 L / 73 cu in
Displacement
3 L / 147 cu in
369 hp
at 5800 rpm
Power
228 hp
at 6000 rpm
BMW i8 Roadster
369 hp
228 hp
Mercedes SL 300
420 lb‑ft
at 3700 rpm
Max. Torque
221 lb‑ft
at 2500 rpm
BMW i8 Roadster
420 lb‑ft
221 lb‑ft
Mercedes SL 300
Performance
BMW i8 Roadster
Mercedes SL 300
155 mph
Maximum Speed
155 mph
4.6 sec
Acceleration 0 to 62 mph
7.8 sec
62 mph
62
mph
mph
210 ft
0.000 sec
BMW i8 Roadster
62 mph
62
mph
mph
354 ft
0.000 sec
Mercedes SL 300
▶ REPLAY
9.98 lb/hp
Weight-to-Power Ratio
17.55 lb/hp
BMW i8 Roadster
9.98 lb/hp
17.55 lb/hp
Mercedes SL 300
Fuel Economy / Emissions
BMW i8 Roadster
Mercedes SL 300
Fuel Economy
118 mpg
combined
25 mpg
BMW i8 Roadster
118 mpg
25 mpg
Mercedes SL 300
No data
city
17 mpg
No data
highway
35 mpg
7.9 gal
Fuel Tank Capacity
21.1 gal
932 mi
Range
534 mi
BMW i8 Roadster
932 mi
534 mi
Mercedes SL 300
Environmental Impact
37.8 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).
176.2 kWh
BMW i8 Roadster
37.8 kWh
176.2 kWh
Mercedes SL 300
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 5
80 g/mi (WLTP)
CO2 Emissions
349 g/mi (NEFZ)
Practical Convenience
BMW i8 Roadster
Mercedes SL 300
3
Doors
2
2
No. of Seats
2
650 lb
Maximum Payload
650 lb
2.5 cu ft
Trunk Volume
9.6 cu ft
No data
Cargo Volume (Seats Down)
No data
