The Comparative Analysis :
Mercedes SLK 55 AMG 7G-TRONIC (08 - 11) vs. BMW Z4 Roadster sDrive20i (19 - ..)
€ 70,700
€ 41,000
€ 70,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 41,000
ⓘ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 sDrive20i.
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive20i
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 sDrive20i
3472 lb
Curb Weight
3263 lb
4079 lb
Gross Vehicle
Weight
Weight
3803 lb
Weight Difference:
209 lb
6.02 %
General
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive20i
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
6-speed manual transmission
Engine
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive20i
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
194 hp
at 4500 rpm
Mercedes SLK 55 AMG
355 hp
194 hp
BMW Z4 Roadster sDrive20i
376 lb‑ft
at 4000 rpm
Max. Torque
236 lb‑ft
at 1450 rpm
Mercedes SLK 55 AMG
376 lb‑ft
236 lb‑ft
BMW Z4 Roadster sDrive20i
Performance
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive20i
155 mph
Maximum Speed
150 mph
4.9 sec
Acceleration 0 to 62 mph
6.8 sec
62 mph
62
mph
mph
223 ft
0.000 sec
Mercedes SLK 55 AMG
62 mph
62
mph
mph
308 ft
0.000 sec
BMW Z4 Roadster sDrive20i
▶ REPLAY
9.78 lb/hp
Weight-to-Power Ratio
16.82 lb/hp
Mercedes SLK 55 AMG
9.78 lb/hp
16.82 lb/hp
BMW Z4 Roadster sDrive20i
Fuel Economy / Emissions
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive20i
Fuel Economy
20 mpg
combined
35 mpg
Mercedes SLK 55 AMG
20 mpg
35 mpg
BMW Z4 Roadster sDrive20i
13 mpg
city
26 mpg
27 mpg
highway
No data
18.5 gal
Fuel Tank Capacity
13.7 gal
362 mi
Range
475 mi
Mercedes SLK 55 AMG
362 mi
475 mi
BMW Z4 Roadster sDrive20i
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 sDrive20i
Euro 4
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
463 g/mi (NEFZ)
CO2 Emissions
264 g/mi (WLTP)
Practical Convenience
Mercedes SLK 55 AMG
BMW Z4 Roadster sDrive20i
2
Doors
2
2
No. of Seats
2
606 lb
Maximum Payload
540 lb
8.5 cu ft
Trunk Volume
8 cu ft
No data
Cargo Volume (Seats Down)
No data
