The Comparative Analysis :
Mercedes SLK 250 CDI 7G-TRONIC PLUS (11 - 15) vs. BMW Z4 Roadster sDrive30i (09 - 11)
€ 42,500

€ 43,400

€ 42,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 43,400
ⓘ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 250 CDI is 4.1 inches shorter, 0.8 inches wider and 0.4 inches taller than the BMW Z4 Roadster sDrive30i.
Mercedes SLK 250 CDI
BMW Z4 Roadster sDrive30i
51.2
71.3
79
50.8
70.5
76.8
71.3 in
Width
70.5 in
79 in
Width Incl. Mirrors
76.8 in
51.2 in
Height
50.8 in
95.7
162.8
98.3
166.9
162.8 in
Length
166.9 in
95.7 in
Wheelbase
98.3 in
Vehicle Weight
Mercedes SLK 250 CDI
BMW Z4 Roadster sDrive30i
3505 lb
Curb Weight
3285 lb
4200 lb
Gross Vehicle
Weight
Weight
3847 lb

Weight Difference:
220 lb
6.28 %

General
Mercedes SLK 250 CDI
BMW Z4 Roadster sDrive30i
R172
Generation
E89
Roadster
Car Body Style
Roadster
Diesel
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes SLK 250 CDI
BMW Z4 Roadster sDrive30i
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
Mercedes-Benz OM 651
Engine Series
BMW N52
OM 651.980
Engine Code
N52-B30


4
Valves
4
4
Cylinders
6
2.1 L / 103 cu in
Displacement
3 L / 147 cu in
201 hp
at 4200 rpm
Power
254 hp
at 6600 rpm
Mercedes SLK 250 CDI
201 hp
254 hp
BMW Z4 Roadster sDrive30i
369 lb‑ft
at 1600 rpm
Max. Torque
229 lb‑ft
at 2600 rpm
Mercedes SLK 250 CDI
369 lb‑ft
229 lb‑ft
BMW Z4 Roadster sDrive30i
Performance
Mercedes SLK 250 CDI
BMW Z4 Roadster sDrive30i
151 mph
Maximum Speed
155 mph
6.7 sec
Acceleration 0 to 62 mph
5.8 sec
62 mph
62
mph
mph
305 ft
0.000 sec

Mercedes SLK 250 CDI
62 mph
62
mph
mph
266 ft
0.000 sec

BMW Z4 Roadster sDrive30i
▶ REPLAY
17.44 lb/hp
Weight-to-Power Ratio
12.93 lb/hp
Mercedes SLK 250 CDI
17.44 lb/hp
12.93 lb/hp
BMW Z4 Roadster sDrive30i
Fuel Economy / Emissions
Mercedes SLK 250 CDI
BMW Z4 Roadster sDrive30i
Fuel Economy
48 mpg
combined
28 mpg
Mercedes SLK 250 CDI
48 mpg
28 mpg
BMW Z4 Roadster sDrive30i
39 mpg
city
19 mpg
57 mpg
highway
No data
15.9 gal
Fuel Tank Capacity
14.5 gal
761 mi
Range
402 mi
Mercedes SLK 250 CDI
761 mi
402 mi
BMW Z4 Roadster sDrive30i
Environmental Impact
100.7 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).
161.1 kWh
Mercedes SLK 250 CDI
100.7 kWh
161.1 kWh
BMW Z4 Roadster sDrive30i
Euro 5
Emission Standard
Euro 5
206 g/mi (NEFZ)
CO2 Emissions
320 g/mi (NEFZ)
Practical Convenience
Mercedes SLK 250 CDI
BMW Z4 Roadster sDrive30i
2
Doors
2
2
No. of Seats
2
694 lb
Maximum Payload
562 lb
9.5 cu ft
Trunk Volume
8.8 cu ft








No data
Cargo Volume (Seats Down)
No data