The Comparative Analysis :
Mercedes SLK 55 AMG 7G-TRONIC (08 - 11) vs. BMW Z4 Roadster sDrive28i (11 - 13)
€ 70,700
€ 43,600
€ 70,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 43,600
ⓘ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 5.4 inches shorter, 0.2 inches wider and 0.8 inches lower than the BMW Z4 Roadster sDrive28i.
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive28i
50
70.6
78.9
50.8
70.5
76.8
70.6 in
Width
70.5 in
78.9 in
Width Incl. Mirrors
76.8 in
50 in
Height
50.8 in
95.7
161.5
98.3
166.9
161.5 in
Length
166.9 in
95.7 in
Wheelbase
98.3 in
Vehicle Weight
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive28i
3472 lb
Curb Weight
3252 lb
4079 lb
Gross Vehicle
Weight
Weight
3814 lb
Weight Difference:
220 lb
6.34 %
General
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive28i
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 sDrive28i
V8 gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
Mercedes-Benz M 113
Engine Series
BMW N20
M 113.989
Engine Code
N20-B20
3
Valves
4
8
Cylinders
4
5.4 L / 264 cu in
Displacement
2 L / 98 cu in
355 hp
at 5750 rpm
Power
242 hp
at 5000 rpm
Mercedes SLK 55 AMG
355 hp
242 hp
BMW Z4 Roadster sDrive28i
376 lb‑ft
at 4000 rpm
Max. Torque
258 lb‑ft
at 1250 rpm
Mercedes SLK 55 AMG
376 lb‑ft
258 lb‑ft
BMW Z4 Roadster sDrive28i
Performance
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive28i
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph
62
mph
mph
223 ft
0.000 sec
Mercedes SLK 55 AMG
62 mph
62
mph
mph
259 ft
0.000 sec
BMW Z4 Roadster sDrive28i
▶ REPLAY
9.78 lb/hp
Weight-to-Power Ratio
13.44 lb/hp
Mercedes SLK 55 AMG
9.78 lb/hp
13.44 lb/hp
BMW Z4 Roadster sDrive28i
Fuel Economy / Emissions
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive28i
Fuel Economy
20 mpg
combined
35 mpg
Mercedes SLK 55 AMG
20 mpg
35 mpg
BMW Z4 Roadster sDrive28i
13 mpg
city
26 mpg
27 mpg
highway
No data
18.5 gal
Fuel Tank Capacity
14.5 gal
362 mi
Range
503 mi
Mercedes SLK 55 AMG
362 mi
503 mi
BMW Z4 Roadster sDrive28i
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).
128.7 kWh
Mercedes SLK 55 AMG
227.4 kWh
128.7 kWh
BMW Z4 Roadster sDrive28i
Euro 4
Emission Standard
Euro 5
463 g/mi (NEFZ)
CO2 Emissions
256 g/mi (NEFZ)
Practical Convenience
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive28i
2
Doors
2
2
No. of Seats
2
606 lb
Maximum Payload
562 lb
8.5 cu ft
Trunk Volume
8.8 cu ft
No data
Cargo Volume (Seats Down)
No data
