The Comparative Analysis :
BMW Z4 Roadster sDrive20i (19 - ..) vs. BMW Z4 Roadster sDrive35is Sport-Automatic DKG (10 - 13)
€ 41,000

€ 57,300

€ 41,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 57,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Z4 Roadster sDrive20i is slightly bigger in every dimension. It's 8 cm longer, 7.4 cm wider and 2 cm taller than the Z4 Roadster sDrive35is.
Z4 Roadster sDrive20i
Z4 Roadster sDrive35is
1304
1864
2024
1284
1790
1951
1864 mm
Width
1790 mm
2024 mm
Width Incl. Mirrors
1951 mm
1304 mm
Height
1284 mm
2470
4324
2496
4244
4324 mm
Length
4244 mm
2470 mm
Wheelbase
2496 mm
Vehicle Weight
Z4 Roadster sDrive20i
Z4 Roadster sDrive35is
1480 kg
Kerb Weight
1600 kg
1725 kg
Gross Vehicle
Weight
Weight
1855 kg

Weight Difference:
120 kg
7.5 %

General
Z4 Roadster sDrive20i
Z4 Roadster sDrive35is
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

6-speed manual transmission
Transmission
7-speed dual clutch transmission
Engine
Z4 Roadster sDrive20i
Z4 Roadster sDrive35is
Straight-four petrol engine with turbocharger
Engine Type
Straight-six petrol engine with two turbochargers (biturbo)
BMW B48
Engine Series
BMW N54
B48-B20
Engine Code
N54-B30


4
Valves
4
4
Cylinders
6
1998 CC
Engine Capacity
2979 CC
194 bhp
at 4500 rpm
Power
335 bhp
at 5900 rpm
Z4 Roadster sDrive20i
194 bhp
335 bhp
Z4 Roadster sDrive35is
320 NM
at 1450 rpm
Max. Torque
450 NM
at 1500 rpm
Z4 Roadster sDrive20i
320 NM
450 NM
Z4 Roadster sDrive35is
Performance
Z4 Roadster sDrive20i
Z4 Roadster sDrive35is
150 mph
Maximum Speed
155 mph
6.8 sec
Acceleration 0 to 62 mph
4.8 sec
62 mph
62
mph
mph
94 m
0.000 sec

Z4 Roadster sDrive20i
62 mph
62
mph
mph
67 m
0.000 sec

Z4 Roadster sDrive35is
▶ REPLAY
7.63 kg/bhp
Weight-to-Power Ratio
4.78 kg/bhp
Z4 Roadster sDrive20i
7.63 kg/bhp
4.78 kg/bhp
Z4 Roadster sDrive35is
Fuel Economy / Emissions
Z4 Roadster sDrive20i
Z4 Roadster sDrive35is
Fuel Economy
42 mpg
combined
31 mpg
Z4 Roadster sDrive20i
42 mpg
31 mpg
Z4 Roadster sDrive35is
31 mpg
city
22 mpg
No data
motorway
No data
52 L
Fuel Tank Capacity
55 L
475 mi
Range
380 mi
Z4 Roadster sDrive20i
475 mi
380 mi
Z4 Roadster sDrive35is
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).
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).
170.4 kWh
Z4 Roadster sDrive20i
128.7 kWh
170.4 kWh
Z4 Roadster sDrive35is
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
164 g/km (WLTP)
CO2 Emissions
210 g/km (NEFZ)
Practical Convenience
Z4 Roadster sDrive20i
Z4 Roadster sDrive35is
2
Doors
2
2
No. of Seats
2
245 kg
Maximum Payload
255 kg
281 L
Boot Capacity
310 L








No data
Boot Capacity (Seats Down)
No data