The Comparative Analysis :

Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11) vs. BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

€ 50,000
Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11) Mercedes SLK 350 Sportmotor
€ 61,000
 BMW Z4 Roadster M40i Steptronic Sport (19 - ..) BMW Z4 Roadster M40i
€ 50,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 61,000

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The Mercedes SLK 350 Sportmotor is considerably smaller in every dimension. It's 8.5 inches shorter, 3 inches narrower and 0.2 inches lower than the BMW Z4 Roadster M40i.
Mercedes SLK 350 Sportmotor
BMW Z4 Roadster M40i
51.1
Blueprint Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11)
70.4
78.9
51.3
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
73.4
79.7
70.4 in
Width
73.4 in
78.9 in
Width Incl. Mirrors
79.7 in
51.1 in
Height
51.3 in
Blueprint Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11)
95.7
161.7
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
97.2
170.2
161.7 in
Length
170.2 in
95.7 in
Wheelbase
97.2 in

Vehicle Weight

Mercedes SLK 350 Sportmotor
BMW Z4 Roadster M40i
3274 lb
Curb Weight
3549 lb
3968 lb
Gross Vehicle
Weight
4101 lb
Mercedes SLK 350 Sportmotor 7G-TRONIC (08 - 11)
Weight Difference:
276 lb
7.78 %
BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

General

Mercedes SLK 350 Sportmotor
BMW Z4 Roadster M40i
R171
Generation
G29
Roadster
Car Body Style
Roadster
Mid-Grade Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

Mercedes SLK 350 Sportmotor
BMW Z4 Roadster M40i
V6 gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
Mercedes-Benz M 272
Engine Series
BMW B58
M 272.969
Engine Code
B58-B30
4
Valves
4
6
Cylinders
6
3.5 L / 171 cu in
Displacement
3 L / 147 cu in
301 hp
at 6500 rpm
Power
335 hp
at 5000 rpm
Mercedes SLK 350 Sportmotor
301 hp
335 hp
BMW Z4 Roadster M40i
266 lb‑ft
at 4900 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Mercedes SLK 350 Sportmotor
266 lb‑ft
369 lb‑ft
BMW Z4 Roadster M40i

Performance

Mercedes SLK 350 Sportmotor
BMW Z4 Roadster M40i
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

246 ft
0.000 sec

Mercedes SLK 350 Sportmotor

62 mph 62
mph

207 ft
0.000 sec

BMW Z4 Roadster M40i

▶ REPLAY
10.88 lb/hp
Weight-to-Power Ratio
10.59 lb/hp
Mercedes SLK 350 Sportmotor
10.88 lb/hp
10.59 lb/hp
BMW Z4 Roadster M40i

Fuel Economy / Emissions

Mercedes SLK 350 Sportmotor
BMW Z4 Roadster M40i
Fuel Economy
26 mpg
combined
33 mpg
Mercedes SLK 350 Sportmotor
26 mpg
33 mpg
BMW Z4 Roadster M40i
18 mpg
city
26 mpg
34 mpg
highway
No data
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
13.7 gal
Kraftstoffanzeige
473 mi
Range
455 mi
Mercedes SLK 350 Sportmotor
473 mi
455 mi
BMW Z4 Roadster M40i
Environmental Impact
174.3 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).
134.5 kWh
Mercedes SLK 350 Sportmotor
174.3 kWh
134.5 kWh
BMW Z4 Roadster M40i
Euro 4 / Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
352 g/mi (NEFZ)
CO2 Emissions
307 g/mi (WLTP)

Practical Convenience

Mercedes SLK 350 Sportmotor
BMW Z4 Roadster M40i
2
Doors
2
2
No. of Seats
2
694 lb
Maximum Payload
551 lb
8.5 cu ft
Trunk Volume
8 cu ft
No data
Cargo Volume (Seats Down)
No data