The Comparative Analysis :
Mercedes SLK 55 AMG 7G-TRONIC (08 - 11) vs. BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
€ 70,700

€ 49,000

€ 70,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 49,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes SLK 55 AMG is considerably smaller in every dimension. It's 8.7 inches shorter, 2.8 inches narrower and 1.3 inches lower than the BMW Z4 Roadster sDrive30i.
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive30i
50
70.6
78.9
51.3
73.4
79.7
70.6 in
Width
73.4 in
78.9 in
Width Incl. Mirrors
79.7 in
50 in
Height
51.3 in
95.7
161.5
97.2
170.2
161.5 in
Length
170.2 in
95.7 in
Wheelbase
97.2 in
Vehicle Weight
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive30i
3472 lb
Curb Weight
3318 lb
4079 lb
Gross Vehicle
Weight
Weight
3836 lb

Weight Difference:
154 lb
4.44 %

General
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive30i
R171
Generation
G29
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive30i
V8 gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
Mercedes-Benz M 113
Engine Series
BMW B48
M 113.989
Engine Code
B48-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
254 hp
at 5000 rpm
Mercedes SLK 55 AMG
355 hp
254 hp
BMW Z4 Roadster sDrive30i
376 lb‑ft
at 4000 rpm
Max. Torque
295 lb‑ft
at 1550 rpm
Mercedes SLK 55 AMG
376 lb‑ft
295 lb‑ft
BMW Z4 Roadster sDrive30i
Performance
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive30i
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
223 ft
0.000 sec

Mercedes SLK 55 AMG
62 mph
62
mph
mph
246 ft
0.000 sec

BMW Z4 Roadster sDrive30i
▶ REPLAY
9.78 lb/hp
Weight-to-Power Ratio
13.06 lb/hp
Mercedes SLK 55 AMG
9.78 lb/hp
13.06 lb/hp
BMW Z4 Roadster sDrive30i
Fuel Economy / Emissions
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive30i
Fuel Economy
20 mpg
combined
39 mpg
Mercedes SLK 55 AMG
20 mpg
39 mpg
BMW Z4 Roadster sDrive30i
13 mpg
city
32 mpg
27 mpg
highway
No data
18.5 gal
Fuel Tank Capacity
13.7 gal
362 mi
Range
539 mi
Mercedes SLK 55 AMG
362 mi
539 mi
BMW Z4 Roadster sDrive30i
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).
113.6 kWh
Mercedes SLK 55 AMG
227.4 kWh
113.6 kWh
BMW Z4 Roadster sDrive30i
Euro 4
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
463 g/mi (NEFZ)
CO2 Emissions
267 g/mi (WLTP)
Practical Convenience
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive30i
2
Doors
2
2
No. of Seats
2
606 lb
Maximum Payload
518 lb
8.5 cu ft
Trunk Volume
8 cu ft








No data
Cargo Volume (Seats Down)
No data