The Comparative Analysis :

Mercedes SLK 300 9G-TRONIC (15 - 16) vs. BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

€ 46,100
Mercedes SLK 300 9G-TRONIC (15 - 16) Mercedes SLK 300
€ 61,000
 BMW Z4 Roadster M40i Steptronic Sport (19 - ..) BMW Z4 Roadster M40i
€ 46,100
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 300 is considerably smaller in every dimension. It's 7.5 inches shorter, 2.1 inches narrower and 0.1 inches lower than the BMW Z4 Roadster M40i.
Mercedes SLK 300
BMW Z4 Roadster M40i
51.2
Blueprint Mercedes SLK 300 9G-TRONIC (15 - 16)
71.3
79
51.3
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
73.4
79.7
71.3 in
Width
73.4 in
79 in
Width Incl. Mirrors
79.7 in
51.2 in
Height
51.3 in
Blueprint Mercedes SLK 300 9G-TRONIC (15 - 16)
95.7
162.8
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
97.2
170.2
162.8 in
Length
170.2 in
95.7 in
Wheelbase
97.2 in

Vehicle Weight

Mercedes SLK 300
BMW Z4 Roadster M40i
3318 lb
Curb Weight
3549 lb
4012 lb
Gross Vehicle
Weight
4101 lb
Mercedes SLK 300 9G-TRONIC (15 - 16)
Weight Difference:
231 lb
6.51 %
BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

General

Mercedes SLK 300
BMW Z4 Roadster M40i
R172
Generation
G29
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
9-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

Mercedes SLK 300
BMW Z4 Roadster M40i
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
Mercedes-Benz M 274
Engine Series
BMW B58
M 274.920
Engine Code
B58-B30
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
242 hp
at 5500 rpm
Power
335 hp
at 5000 rpm
Mercedes SLK 300
242 hp
335 hp
BMW Z4 Roadster M40i
273 lb‑ft
at 1300 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Mercedes SLK 300
273 lb‑ft
369 lb‑ft
BMW Z4 Roadster M40i

Performance

Mercedes SLK 300
BMW Z4 Roadster M40i
151 mph
Maximum Speed
155 mph
6.6 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

302 ft
0.000 sec

Mercedes SLK 300

62 mph 62
mph

207 ft
0.000 sec

BMW Z4 Roadster M40i

▶ REPLAY
13.71 lb/hp
Weight-to-Power Ratio
10.59 lb/hp
Mercedes SLK 300
13.71 lb/hp
10.59 lb/hp
BMW Z4 Roadster M40i

Fuel Economy / Emissions

Mercedes SLK 300
BMW Z4 Roadster M40i
Fuel Economy
38 mpg
combined
33 mpg
Mercedes SLK 300
38 mpg
33 mpg
BMW Z4 Roadster M40i
30 mpg
city
26 mpg
45 mpg
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
13.7 gal
Kraftstoffanzeige
601 mi
Range
455 mi
Mercedes SLK 300
601 mi
455 mi
BMW Z4 Roadster M40i
Environmental Impact
117.5 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 300
117.5 kWh
134.5 kWh
BMW Z4 Roadster M40i
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
232 g/mi (NEFZ)
CO2 Emissions
307 g/mi (WLTP)

Practical Convenience

Mercedes SLK 300
BMW Z4 Roadster M40i
2
Doors
2
2
No. of Seats
2
694 lb
Maximum Payload
551 lb
9.5 cu ft
Trunk Volume
8 cu ft
No data
Cargo Volume (Seats Down)
No data