The Comparative Analysis :
Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11) vs. BMW Z4 Roadster sDrive23i Sport-Automatic (09 - 11)
€ 50,000
€ 38,800
€ 50,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 38,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The Mercedes SLK 350 Sportmotor is 5.2 inches shorter, 0.1 inches narrower and 0.3 inches taller than the BMW Z4 Roadster sDrive23i.
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster sDrive23i
51.1
70.4
78.9
50.8
70.5
76.8
70.4 in
Width
70.5 in
78.9 in
Width Incl. Mirrors
76.8 in
51.1 in
Height
50.8 in
95.7
161.7
98.3
166.9
161.7 in
Length
166.9 in
95.7 in
Wheelbase
98.3 in
Vehicle Weight
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster sDrive23i
3274 lb
Curb Weight
3318 lb
3968 lb
Gross Vehicle
Weight
Weight
3880 lb
Weight Difference:
44 lb
1.33 %
General
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster sDrive23i
R171
Generation
E89
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 automatic transmission
Engine
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster sDrive23i
V6 gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
Mercedes-Benz M 272
Engine Series
BMW N52
M 272.969
Engine Code
N52-B25
4
Valves
4
6
Cylinders
6
3.5 L / 171 cu in
Displacement
2.5 L / 122 cu in
301 hp
at 6500 rpm
Power
201 hp
at 6300 rpm
Mercedes SLK 350 Sportmotor
301 hp
201 hp
BMW Z4 Roadster sDrive23i
266 lb‑ft
at 4900 rpm
Max. Torque
184 lb‑ft
at 2750 rpm
Mercedes SLK 350 Sportmotor
266 lb‑ft
184 lb‑ft
BMW Z4 Roadster sDrive23i
Performance
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster sDrive23i
155 mph
Maximum Speed
149 mph
5.4 sec
Acceleration 0 to 62 mph
7.3 sec
62 mph
62
mph
mph
246 ft
0.000 sec
Mercedes SLK 350 Sportmotor
62 mph
62
mph
mph
331 ft
0.000 sec
BMW Z4 Roadster sDrive23i
▶ REPLAY
10.88 lb/hp
Weight-to-Power Ratio
16.51 lb/hp
Mercedes SLK 350 Sportmotor
10.88 lb/hp
16.51 lb/hp
BMW Z4 Roadster sDrive23i
Fuel Economy / Emissions
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster sDrive23i
Fuel Economy
26 mpg
combined
29 mpg
Mercedes SLK 350 Sportmotor
26 mpg
29 mpg
BMW Z4 Roadster sDrive23i
18 mpg
city
20 mpg
34 mpg
highway
No data
18.5 gal
Fuel Tank Capacity
14.5 gal
473 mi
Range
417 mi
Mercedes SLK 350 Sportmotor
473 mi
417 mi
BMW Z4 Roadster sDrive23i
Environmental Impact
174.3 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).
155.3 kWh
Mercedes SLK 350 Sportmotor
174.3 kWh
155.3 kWh
BMW Z4 Roadster sDrive23i
Euro 4 / Euro 5
Emission Standard
Euro 5
352 g/mi (NEFZ)
CO2 Emissions
309 g/mi (NEFZ)
Practical Convenience
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster sDrive23i
2
Doors
2
2
No. of Seats
2
694 lb
Maximum Payload
562 lb
8.5 cu ft
Trunk Volume
8.8 cu ft
No data
Cargo Volume (Seats Down)
No data
