The Comparative Analysis :
BMW Z4 Roadster sDrive28i Automatic (13 - 16) vs. Mercedes SLK 350 7G-TRONIC PLUS (11 - 16)
€ 46,600

€ 53,100

€ 46,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 53,100
ⓘ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 sDrive28i is 4.1 inches longer, 0.8 inches narrower and 0.4 inches lower than the Mercedes SLK 350.
BMW Z4 Roadster sDrive28i
Mercedes SLK 350
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 sDrive28i
Mercedes SLK 350
3296 lb
Curb Weight
3395 lb
3858 lb
Gross Vehicle
Weight
Weight
4090 lb

Weight Difference:
99 lb
2.92 %

General
BMW Z4 Roadster sDrive28i
Mercedes SLK 350
E89
Generation
R172
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW Z4 Roadster sDrive28i
Mercedes SLK 350
Straight-four gasoline engine with turbocharger
Engine Type
V6 gasoline engine (naturally aspirated engine)
BMW N20
Engine Series
Mercedes-Benz M 276
N20-B20
Engine Code
M 276.956


4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3.5 L / 171 cu in
242 hp
at 5000 rpm
Power
302 hp
at 6500 rpm
BMW Z4 Roadster sDrive28i
242 hp
302 hp
Mercedes SLK 350
258 lb‑ft
at 1250 rpm
Max. Torque
273 lb‑ft
at 3500 rpm
BMW Z4 Roadster sDrive28i
258 lb‑ft
273 lb‑ft
Mercedes SLK 350
Performance
BMW Z4 Roadster sDrive28i
Mercedes SLK 350
155 mph
Maximum Speed
155 mph
5.7 sec
Acceleration 0 to 62 mph
5.6 sec
62 mph
62
mph
mph
259 ft
0.000 sec

BMW Z4 Roadster sDrive28i
62 mph
62
mph
mph
256 ft
0.000 sec

Mercedes SLK 350
▶ REPLAY
13.62 lb/hp
Weight-to-Power Ratio
11.24 lb/hp
BMW Z4 Roadster sDrive28i
13.62 lb/hp
11.24 lb/hp
Mercedes SLK 350
Fuel Economy / Emissions
BMW Z4 Roadster sDrive28i
Mercedes SLK 350
Fuel Economy
35 mpg
combined
33 mpg
BMW Z4 Roadster sDrive28i
35 mpg
33 mpg
Mercedes SLK 350
25 mpg
city
24 mpg
No data
highway
43 mpg
14.5 gal
Fuel Tank Capacity
15.9 gal
503 mi
Range
525 mi
BMW Z4 Roadster sDrive28i
503 mi
525 mi
Mercedes SLK 350
Environmental Impact
128.7 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).
134.5 kWh
BMW Z4 Roadster sDrive28i
128.7 kWh
134.5 kWh
Mercedes SLK 350
Euro 6b (NEFZ)
Emission Standard
Euro 5 / Euro 6
256 g/mi (NEFZ)
CO2 Emissions
269 g/mi (NEFZ)
Practical Convenience
BMW Z4 Roadster sDrive28i
Mercedes SLK 350
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
694 lb
8.8 cu ft
Trunk Volume
9.5 cu ft








No data
Cargo Volume (Seats Down)
No data