The Comparative Analysis :

Mercedes SLK 250 CDI (12 - 15) vs. BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

€ 40,100
Mercedes SLK 250 CDI (12 - 15) Mercedes SLK 250 CDI
€ 61,000
 BMW Z4 Roadster M40i Steptronic Sport (19 - ..) BMW Z4 Roadster M40i
€ 40,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 61,000

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The Mercedes SLK 250 CDI is considerably smaller in every dimension. It's 19 cm shorter, 5.4 cm narrower and 0.3 cm lower than the BMW Z4 Roadster M40i.
Mercedes SLK 250 CDI
BMW Z4 Roadster M40i
1301
Blueprint Mercedes SLK 250 CDI (12 - 15)
1810
2006
1304
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
1864
2024
1810 mm
Width
1864 mm
2006 mm
Width Incl. Mirrors
2024 mm
1301 mm
Height
1304 mm
Blueprint Mercedes SLK 250 CDI (12 - 15)
2430
4134
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
2470
4324
4134 mm
Length
4324 mm
2430 mm
Wheelbase
2470 mm

Vehicle Weight

Mercedes SLK 250 CDI
BMW Z4 Roadster M40i
1570 kg
Kerb Weight
1610 kg
1885 kg
Gross Vehicle
Weight
1860 kg
Mercedes SLK 250 CDI (12 - 15)
Weight Difference:
40 kg
2.48 %
BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

General

Mercedes SLK 250 CDI
BMW Z4 Roadster M40i
R172
Generation
G29
Roadster
Car Body Style
Roadster
Diesel
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
6-speed manual transmission
Transmission
8-speed automatic transmission

Engine

Mercedes SLK 250 CDI
BMW Z4 Roadster M40i
Straight-four diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six petrol engine with two tur­bo­chargers (bi­turbo)
Mercedes-Benz OM 651
Engine Series
BMW B58
OM 651.980
Engine Code
B58-B30
4
Valves
4
4
Cylinders
6
2143 CC
Engine Capacity
2998 CC
201 bhp
at 4200 rpm
Power
335 bhp
at 5000 rpm
Mercedes SLK 250 CDI
201 bhp
335 bhp
BMW Z4 Roadster M40i
500 NM
at 1600 rpm
Max. Torque
500 NM
at 1600 rpm
Mercedes SLK 250 CDI
500 NM
500 NM
BMW Z4 Roadster M40i

Performance

Mercedes SLK 250 CDI
BMW Z4 Roadster M40i
152 mph
Maximum Speed
155 mph
6.5 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

90 m
0.000 sec

Mercedes SLK 250 CDI

62 mph 62
mph

63 m
0.000 sec

BMW Z4 Roadster M40i

▶ REPLAY
7.81 kg/bhp
Weight-to-Power Ratio
4.81 kg/bhp
Mercedes SLK 250 CDI
7.81 kg/bhp
4.81 kg/bhp
BMW Z4 Roadster M40i

Fuel Economy / Emissions

Mercedes SLK 250 CDI
BMW Z4 Roadster M40i
Fuel Economy
59 mpg
combined
40 mpg
Mercedes SLK 250 CDI
59 mpg
40 mpg
BMW Z4 Roadster M40i
46 mpg
city
31 mpg
71 mpg
motorway
No data
Kraftstoffanzeige
60 L
Fuel Tank Capacity
52 L
Kraftstoffanzeige
777 mi
Range
455 mi
Mercedes SLK 250 CDI
777 mi
455 mi
BMW Z4 Roadster M40i
Environmental Impact
98.8 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).
134.5 kWh
Mercedes SLK 250 CDI
98.8 kWh
134.5 kWh
BMW Z4 Roadster M40i
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
124 g/km (NEFZ)
CO2 Emissions
191 g/km (WLTP)

Practical Convenience

Mercedes SLK 250 CDI
BMW Z4 Roadster M40i
2
Doors
2
2
No. of Seats
2
315 kg
Maximum Payload
250 kg
335 L
Boot Capacity
281 L
No data
Boot Capacity (Seats Down)
No data