The Comparative Analysis :

BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) vs. BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)

€ 39,000
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) Z4 Roadster sDrive20i
€ 49,000
 BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..) Z4 Roadster sDrive30i
€ 39,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 49,000

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

Vehicle Dimensions

The Z4 Roadster sDrive20i is slightly smaller in every dimension. It's 8.5 cm shorter, 7.4 cm narrower and 1.3 cm lower than the Z4 Roadster sDrive30i.
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
1291
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
1790
1951
1304
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
1864
2024
1790 mm
Width
1864 mm
1951 mm
Width Incl. Mirrors
2024 mm
1291 mm
Height
1304 mm
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
2496
4239
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
2470
4324
4239 mm
Length
4324 mm
2496 mm
Wheelbase
2470 mm

Vehicle Weight

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
1495 kg
Kerb Weight
1505 kg
1750 kg
Gross Vehicle
Weight
1740 kg
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
Weight Difference:
10 kg
0.66 %
BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)

General

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
E89
Generation
G29
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
8-speed automatic transmission

Engine

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
Straight-four petrol engine with tur­bo­charger
Engine Type
Straight-four petrol engine with tur­bo­charger
BMW N20
Engine Series
BMW B48
N20-B20
Engine Code
B48-B20
4
Valves
4
4
Cylinders
4
1997 CC
Engine Capacity
1998 CC
181 bhp
at 5000 rpm
Power
254 bhp
at 5000 rpm
Z4 Roadster sDrive20i
181 bhp
254 bhp
Z4 Roadster sDrive30i
270 NM
at 1250 rpm
Max. Torque
400 NM
at 1550 rpm
Z4 Roadster sDrive20i
270 NM
400 NM
Z4 Roadster sDrive30i

Performance

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
144 mph
Maximum Speed
155 mph
7.2 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph 62
mph

100 m
0.000 sec

Z4 Roadster sDrive20i

62 mph 62
mph

75 m
0.000 sec

Z4 Roadster sDrive30i

▶ REPLAY
8.26 kg/bhp
Weight-to-Power Ratio
5.93 kg/bhp
Z4 Roadster sDrive20i
8.26 kg/bhp
5.93 kg/bhp
Z4 Roadster sDrive30i

Fuel Economy / Emissions

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
Fuel Economy
42 mpg
combined
47 mpg
Z4 Roadster sDrive20i
42 mpg
47 mpg
Z4 Roadster sDrive30i
31 mpg
city
39 mpg
No data
motorway
No data
Kraftstoffanzeige
55 L
Fuel Tank Capacity
52 L
Kraftstoffanzeige
503 mi
Range
539 mi
Z4 Roadster sDrive20i
503 mi
539 mi
Z4 Roadster sDrive30i
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).
113.6 kWh
Z4 Roadster sDrive20i
128.7 kWh
113.6 kWh
Z4 Roadster sDrive30i
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
159 g/km (NEFZ)
CO2 Emissions
166 g/km (WLTP)

Practical Convenience

Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
2
Doors
2
2
No. of Seats
2
255 kg
Maximum Payload
235 kg
310 L
Boot Capacity
281 L
No data
Boot Capacity (Seats Down)
No data