The Comparative Analysis :
BMW Z4 Roadster sDrive30i (09 - 11) vs. Mercedes SLK 55 AMG SPEEDSHIFT PLUS (11 - 16)
€ 43,400

€ 73,500

€ 43,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 73,500
ⓘ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 BMW Z4 Roadster sDrive30i is 4.1 inches longer, 0.8 inches narrower and 0.4 inches lower than the Mercedes SLK 55 AMG.
BMW Z4 Roadster sDrive30i
Mercedes SLK 55 AMG
50.8
70.5
76.8
51.2
71.3
79
70.5 in
Width
71.3 in
76.8 in
Width Incl. Mirrors
79 in
50.8 in
Height
51.2 in
98.3
166.9
95.7
162.8
166.9 in
Length
162.8 in
98.3 in
Wheelbase
95.7 in
Vehicle Weight
BMW Z4 Roadster sDrive30i
Mercedes SLK 55 AMG
3285 lb
Curb Weight
3549 lb
3847 lb
Gross Vehicle
Weight
Weight
4211 lb

Weight Difference:
265 lb
7.47 %

General
BMW Z4 Roadster sDrive30i
Mercedes SLK 55 AMG
E89
Generation
R172
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
7-speed automatic transmission
Engine
BMW Z4 Roadster sDrive30i
Mercedes SLK 55 AMG
Straight-six gasoline engine (naturally aspirated engine)
Engine Type
V8 gasoline engine (naturally aspirated engine)
BMW N52
Engine Series
Mercedes-Benz M 152
N52-B30
Engine Code
M 152.980


4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
5.5 L / 269 cu in
254 hp
at 6600 rpm
Power
416 hp
at 6800 rpm
BMW Z4 Roadster sDrive30i
254 hp
416 hp
Mercedes SLK 55 AMG
229 lb‑ft
at 2600 rpm
Max. Torque
398 lb‑ft
at 4500 rpm
BMW Z4 Roadster sDrive30i
229 lb‑ft
398 lb‑ft
Mercedes SLK 55 AMG
Performance
BMW Z4 Roadster sDrive30i
Mercedes SLK 55 AMG
155 mph
Maximum Speed
155 mph
5.8 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
266 ft
0.000 sec

BMW Z4 Roadster sDrive30i
62 mph
62
mph
mph
210 ft
0.000 sec

Mercedes SLK 55 AMG
▶ REPLAY
12.93 lb/hp
Weight-to-Power Ratio
8.53 lb/hp
BMW Z4 Roadster sDrive30i
12.93 lb/hp
8.53 lb/hp
Mercedes SLK 55 AMG
Fuel Economy / Emissions
BMW Z4 Roadster sDrive30i
Mercedes SLK 55 AMG
Fuel Economy
28 mpg
combined
28 mpg
BMW Z4 Roadster sDrive30i
28 mpg
28 mpg
Mercedes SLK 55 AMG
19 mpg
city
20 mpg
No data
highway
38 mpg
14.5 gal
Fuel Tank Capacity
18.5 gal
402 mi
Range
518 mi
BMW Z4 Roadster sDrive30i
402 mi
518 mi
Mercedes SLK 55 AMG
Environmental Impact
161.1 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).
159.2 kWh
BMW Z4 Roadster sDrive30i
161.1 kWh
159.2 kWh
Mercedes SLK 55 AMG
Euro 5
Emission Standard
Euro 5 / Euro 6
320 g/mi (NEFZ)
CO2 Emissions
314 g/mi (NEFZ)
Practical Convenience
BMW Z4 Roadster sDrive30i
Mercedes SLK 55 AMG
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
661 lb
8.8 cu ft
Trunk Volume
9.5 cu ft








No data
Cargo Volume (Seats Down)
No data