The Comparative Analysis :
BMW Z4 Roadster sDrive23i (09 - 11) vs. Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11)
€ 36,400
![BMW Z4 Roadster sDrive23i (09 - 11)](graphbase/cars/cars_big_png/BMW_Z4_E89.png)
€ 50,000
![Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11)](graphbase/cars/cars_big/Mercedes_SLK_R171-08.webp)
€ 36,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 50,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The BMW Z4 Roadster sDrive23i is 13.2 cm longer, 0.2 cm wider and 0.7 cm lower than the Mercedes SLK 350 Sportmotor.
BMW Z4 Roadster sDrive23i
Mercedes SLK 350 Sportmotor
1291
1790
1951
1298
1788
2005
1790 mm
Width
1788 mm
1951 mm
Width Incl. Mirrors
2005 mm
1291 mm
Height
1298 mm
2496
4239
2430
4107
4239 mm
Length
4107 mm
2496 mm
Wheelbase
2430 mm
Vehicle Weight
BMW Z4 Roadster sDrive23i
Mercedes SLK 350 Sportmotor
1480 kg
Kerb Weight
1485 kg
1735 kg
Gross Vehicle
Weight
Weight
1800 kg
![BMW Z4 Roadster sDrive23i (09 - 11)](graphbase/cars/cars_big_png/BMW_Z4_E89.png)
Weight Difference:
5 kg
0.34 %
![Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11)](graphbase/cars/cars_big_png/Mercedes_SLK_R171-08.png)
General
BMW Z4 Roadster sDrive23i
Mercedes SLK 350 Sportmotor
E89
Generation
R171
Roadster
Car Body Style
Roadster
Super Unleaded (98 RON)
Fuel Type
Unleaded (95 RON)
![](graphbase/drivetrain/RWD.png)
Rear-wheel drive
Drive
Rear-wheel drive
![](graphbase/drivetrain/RWD.png)
6-speed manual transmission
Transmission
7-speed automatic transmission
Engine
BMW Z4 Roadster sDrive23i
Mercedes SLK 350 Sportmotor
Straight-six petrol engine (naturally aspirated engine)
Engine Type
V6 petrol engine (naturally aspirated engine)
BMW N52
Engine Series
Mercedes-Benz M 272
N52-B25
Engine Code
M 272.969
![](graphbase/engines/BMW_N52.png)
![](graphbase/engines/Mercedes-Benz_M_272.png)
4
Valves
4
6
Cylinders
6
2497 CC
Engine Capacity
3498 CC
201 bhp
at 6300 rpm
Power
301 bhp
at 6500 rpm
BMW Z4 Roadster sDrive23i
201 bhp
301 bhp
Mercedes SLK 350 Sportmotor
250 NM
at 2750 rpm
Max. Torque
360 NM
at 4900 rpm
BMW Z4 Roadster sDrive23i
250 NM
360 NM
Mercedes SLK 350 Sportmotor
Performance
BMW Z4 Roadster sDrive23i
Mercedes SLK 350 Sportmotor
150 mph
Maximum Speed
155 mph
6.6 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
92 m
0.000 sec
![](graphbase/cars/cars_small_png/BMW_Z4_E89.png)
BMW Z4 Roadster sDrive23i
62 mph
62
mph
mph
75 m
0.000 sec
![](graphbase/cars/cars_small_png/Mercedes_SLK_R171-08.png)
Mercedes SLK 350 Sportmotor
▶ REPLAY
7.36 kg/bhp
Weight-to-Power Ratio
4.93 kg/bhp
BMW Z4 Roadster sDrive23i
7.36 kg/bhp
4.93 kg/bhp
Mercedes SLK 350 Sportmotor
Fuel Economy / Emissions
BMW Z4 Roadster sDrive23i
Mercedes SLK 350 Sportmotor
Fuel Economy
33 mpg
combined
31 mpg
BMW Z4 Roadster sDrive23i
33 mpg
31 mpg
Mercedes SLK 350 Sportmotor
23 mpg
city
22 mpg
No data
motorway
40 mpg
55 L
Fuel Tank Capacity
70 L
402 mi
Range
473 mi
BMW Z4 Roadster sDrive23i
402 mi
473 mi
Mercedes SLK 350 Sportmotor
Environmental Impact
161.1 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).
174.3 kWh
BMW Z4 Roadster sDrive23i
161.1 kWh
174.3 kWh
Mercedes SLK 350 Sportmotor
Euro 5
Emission Standard
Euro 4 / Euro 5
199 g/km (NEFZ)
CO2 Emissions
219 g/km (NEFZ)
Practical Convenience
BMW Z4 Roadster sDrive23i
Mercedes SLK 350 Sportmotor
2
Doors
2
2
No. of Seats
2
255 kg
Maximum Payload
315 kg
310 L
Boot Capacity
300 L
![](graphbase/koffer/KL.png)
![](graphbase/koffer/KL.png)
![](graphbase/koffer/KS.png)
![](graphbase/koffer/KB.png)
![](graphbase/koffer/KL.png)
![](graphbase/koffer/KL.png)
![](graphbase/koffer/KS.png)
![](graphbase/koffer/KB.png)
No data
Boot Capacity (Seats Down)
No data