The Comparative Analysis :

BMW Z4 Roadster M40i Steptronic Sport (19 - ..) vs. BMW Z4 Roadster sDrive20i (13 - 16)

€ 61,000
BMW Z4 Roadster M40i Steptronic Sport (19 - ..) Z4 Roadster M40i
€ 37,300
 BMW Z4 Roadster sDrive20i (13 - 16) Z4 Roadster sDrive20i
€ 61,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 37,300

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

Vehicle Dimensions

The Z4 Roadster M40i is slightly bigger in every dimension. It's 8.5 cm longer, 7.4 cm wider and 1.3 cm taller than the Z4 Roadster sDrive20i.
Z4 Roadster M40i
Z4 Roadster sDrive20i
1304
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
1864
2024
1291
Blueprint BMW Z4 Roadster sDrive20i (13 - 16)
1790
1951
1864 mm
Width
1790 mm
2024 mm
Width Incl. Mirrors
1951 mm
1304 mm
Height
1291 mm
Blueprint BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
2470
4324
Blueprint BMW Z4 Roadster sDrive20i (13 - 16)
2496
4239
4324 mm
Length
4239 mm
2470 mm
Wheelbase
2496 mm

Vehicle Weight

Z4 Roadster M40i
Z4 Roadster sDrive20i
1610 kg
Kerb Weight
1470 kg
1860 kg
Gross Vehicle
Weight
1725 kg
BMW Z4 Roadster M40i Steptronic Sport (19 - ..)
Weight Difference:
140 kg
8.7 %
BMW Z4 Roadster sDrive20i (13 - 16)

General

Z4 Roadster M40i
Z4 Roadster sDrive20i
G29
Generation
E89
Roadster
Car Body Style
Roadster
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

Z4 Roadster M40i
Z4 Roadster sDrive20i
Straight-six petrol engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-four petrol engine with tur­bo­charger
BMW B58
Engine Series
BMW N20
B58-B30
Engine Code
N20-B20
4
Valves
4
6
Cylinders
4
2998 CC
Engine Capacity
1997 CC
335 bhp
at 5000 rpm
Power
181 bhp
at 5000 rpm
Z4 Roadster M40i
335 bhp
181 bhp
Z4 Roadster sDrive20i
500 NM
at 1600 rpm
Max. Torque
270 NM
at 1250 rpm
Z4 Roadster M40i
500 NM
270 NM
Z4 Roadster sDrive20i

Performance

Z4 Roadster M40i
Z4 Roadster sDrive20i
155 mph
Maximum Speed
146 mph
4.5 sec
Acceleration 0 to 62 mph
6.9 sec
62 mph 62
mph

63 m
0.000 sec

Z4 Roadster M40i

62 mph 62
mph

96 m
0.000 sec

Z4 Roadster sDrive20i

▶ REPLAY
4.81 kg/bhp
Weight-to-Power Ratio
8.12 kg/bhp
Z4 Roadster M40i
4.81 kg/bhp
8.12 kg/bhp
Z4 Roadster sDrive20i

Fuel Economy / Emissions

Z4 Roadster M40i
Z4 Roadster sDrive20i
Fuel Economy
40 mpg
combined
42 mpg
Z4 Roadster M40i
40 mpg
42 mpg
Z4 Roadster sDrive20i
31 mpg
city
32 mpg
No data
motorway
No data
Kraftstoffanzeige
52 L
Fuel Tank Capacity
55 L
Kraftstoffanzeige
455 mi
Range
503 mi
Z4 Roadster M40i
455 mi
503 mi
Z4 Roadster sDrive20i
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).
128.7 kWh
Z4 Roadster M40i
134.5 kWh
128.7 kWh
Z4 Roadster sDrive20i
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
191 g/km (WLTP)
CO2 Emissions
159 g/km (NEFZ)

Practical Convenience

Z4 Roadster M40i
Z4 Roadster sDrive20i
2
Doors
2
2
No. of Seats
2
250 kg
Maximum Payload
255 kg
281 L
Boot Capacity
310 L
No data
Boot Capacity (Seats Down)
No data