The Comparative Analysis :
Mercedes SLK 55 AMG 7G-TRONIC (04 - 08) vs. BMW Z4 Roadster sDrive23i (09 - 11)
€ 68,100
€ 36,400
€ 68,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 36,400
ⓘ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 55 AMG is 6 inches shorter, 0.2 inches wider and 0.8 inches lower than the BMW Z4 Roadster sDrive23i.
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive23i
50
70.6
77.6
50.8
70.5
76.8
70.6 in
Width
70.5 in
77.6 in
Width Incl. Mirrors
76.8 in
50 in
Height
50.8 in
95.7
160.9
98.3
166.9
160.9 in
Length
166.9 in
95.7 in
Wheelbase
98.3 in
Vehicle Weight
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive23i
3395 lb
Curb Weight
3263 lb
4079 lb
Gross Vehicle
Weight
Weight
3825 lb
Weight Difference:
132 lb
3.89 %
General
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive23i
R171
Generation
E89
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive23i
V8 gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
Mercedes-Benz M 113
Engine Series
BMW N52
M 113.989
Engine Code
N52-B25
3
Valves
4
8
Cylinders
6
5.4 L / 264 cu in
Displacement
2.5 L / 122 cu in
355 hp
at 5750 rpm
Power
201 hp
at 6300 rpm
Mercedes SLK 55 AMG
355 hp
201 hp
BMW Z4 Roadster sDrive23i
376 lb‑ft
at 4000 rpm
Max. Torque
184 lb‑ft
at 2750 rpm
Mercedes SLK 55 AMG
376 lb‑ft
184 lb‑ft
BMW Z4 Roadster sDrive23i
Performance
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive23i
155 mph
Maximum Speed
150 mph
4.9 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
223 ft
0.000 sec
Mercedes SLK 55 AMG
62 mph
62
mph
mph
302 ft
0.000 sec
BMW Z4 Roadster sDrive23i
▶ REPLAY
9.56 lb/hp
Weight-to-Power Ratio
16.23 lb/hp
Mercedes SLK 55 AMG
9.56 lb/hp
16.23 lb/hp
BMW Z4 Roadster sDrive23i
Fuel Economy / Emissions
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive23i
Fuel Economy
20 mpg
combined
28 mpg
Mercedes SLK 55 AMG
20 mpg
28 mpg
BMW Z4 Roadster sDrive23i
13 mpg
city
19 mpg
27 mpg
highway
No data
18.5 gal
Fuel Tank Capacity
14.5 gal
362 mi
Range
402 mi
Mercedes SLK 55 AMG
362 mi
402 mi
BMW Z4 Roadster sDrive23i
Environmental Impact
227.4 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 55 AMG
227.4 kWh
161.1 kWh
BMW Z4 Roadster sDrive23i
Euro 4
Emission Standard
Euro 5
463 g/mi (NEFZ)
CO2 Emissions
320 g/mi (NEFZ)
Practical Convenience
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive23i
2
Doors
2
2
No. of Seats
2
683 lb
Maximum Payload
562 lb
8.5 cu ft
Trunk Volume
8.8 cu ft
No data
Cargo Volume (Seats Down)
No data
