The Comparative Analysis :

BMW Z4 Roadster M40i Steptronic Sport (19 - ..) vs. Mercedes SLK 280 7G-TRONIC (05 - 08)

€ 61,000
BMW Z4 Roadster M40i Steptronic Sport (19 - ..) BMW Z4 Roadster M40i
€ 43,500
 Mercedes SLK 280 7G-TRONIC (05 - 08) Mercedes SLK 280
€ 61,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 43,500

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

Vehicle Dimensions

The BMW Z4 Roadster M40i is considerably bigger in every dimension. It's 9.3 inches longer, 3 inches wider and 0.3 inches taller than the Mercedes SLK 280.
BMW Z4 Roadster M40i
Mercedes SLK 280
51.3
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
73.4
79.7
51
Blueprint Mercedes SLK 280 7G-TRONIC (05 - 08)
70.4
77.6
73.4 in
Width
70.4 in
79.7 in
Width Incl. Mirrors
77.6 in
51.3 in
Height
51 in
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
97.2
170.2
Blueprint Mercedes SLK 280 7G-TRONIC (05 - 08)
95.7
161
170.2 in
Length
161 in
97.2 in
Wheelbase
95.7 in

Vehicle Weight

BMW Z4 Roadster M40i
Mercedes SLK 280
3549 lb
Curb Weight
3219 lb
4101 lb
Gross Vehicle
Weight
3869 lb
BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
Weight Difference:
331 lb
9.33 %
Mercedes SLK 280 7G-TRONIC (05 - 08)

General

BMW Z4 Roadster M40i
Mercedes SLK 280
G29
Generation
R171
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 M40i
Mercedes SLK 280
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
V6 gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW B58
Engine Series
Mercedes-Benz M 272
B58-B30
Engine Code
M 272.942
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
335 hp
at 5000 rpm
Power
228 hp
at 6100 rpm
BMW Z4 Roadster M40i
335 hp
228 hp
Mercedes SLK 280
369 lb‑ft
at 1600 rpm
Max. Torque
221 lb‑ft
at 3500 rpm
BMW Z4 Roadster M40i
369 lb‑ft
221 lb‑ft
Mercedes SLK 280

Performance

BMW Z4 Roadster M40i
Mercedes SLK 280
155 mph
Maximum Speed
155 mph
4.5 sec
Acceleration 0 to 62 mph
6.2 sec
62 mph 62
mph

207 ft
0.000 sec

BMW Z4 Roadster M40i

62 mph 62
mph

282 ft
0.000 sec

Mercedes SLK 280

▶ REPLAY
10.59 lb/hp
Weight-to-Power Ratio
14.12 lb/hp
BMW Z4 Roadster M40i
10.59 lb/hp
14.12 lb/hp
Mercedes SLK 280

Fuel Economy / Emissions

BMW Z4 Roadster M40i
Mercedes SLK 280
Fuel Economy
33 mpg
combined
25 mpg
BMW Z4 Roadster M40i
33 mpg
25 mpg
Mercedes SLK 280
26 mpg
city
18 mpg
No data
highway
34 mpg
Kraftstoffanzeige
13.7 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
455 mi
Range
468 mi
BMW Z4 Roadster M40i
455 mi
468 mi
Mercedes SLK 280
Environmental Impact
134.5 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).
176.2 kWh
BMW Z4 Roadster M40i
134.5 kWh
176.2 kWh
Mercedes SLK 280
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
307 g/mi (WLTP)
CO2 Emissions
357 g/mi (NEFZ)

Practical Convenience

BMW Z4 Roadster M40i
Mercedes SLK 280
2
Doors
2
2
No. of Seats
2
551 lb
Maximum Payload
650 lb
8 cu ft
Trunk Volume
8.5 cu ft
No data
Cargo Volume (Seats Down)
No data