The Comparative Analysis :

BMW Z4 Roadster sDrive35is Sport-Automatic DKG (10 - 13) vs. BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)

€ 57,300
BMW Z4 Roadster sDrive35is Sport-Automatic DKG (10 - 13) Z4 Roadster sDrive35is
€ 39,000
 BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) Z4 Roadster sDrive20i
€ 57,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 39,000

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

Vehicle Dimensions

Тhere is barely any difference in dimensions between the two vehicles. Both cars are the same width, but the Z4 Roadster sDrive35is is 0.5 cm longer and 0.7 cm lower.
Z4 Roadster sDrive35is
Z4 Roadster sDrive20i
1284
Blueprint BMW Z4 Roadster sDrive35is Sport-Automatic DKG (10 - 13)
1790
1951
1291
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
1790
1951
1790 mm
Width
1790 mm
1951 mm
Width Incl. Mirrors
1951 mm
1284 mm
Height
1291 mm
Blueprint BMW Z4 Roadster sDrive35is Sport-Automatic DKG (10 - 13)
2496
4244
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
2496
4239
4244 mm
Length
4239 mm
2496 mm
Wheelbase
2496 mm

Vehicle Weight

Z4 Roadster sDrive35is
Z4 Roadster sDrive20i
1600 kg
Kerb Weight
1495 kg
1855 kg
Gross Vehicle
Weight
1750 kg
BMW Z4 Roadster sDrive35is Sport-Automatic DKG (10 - 13)
Weight Difference:
105 kg
6.56 %
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)

General

Z4 Roadster sDrive35is
Z4 Roadster sDrive20i
E89
Generation
E89
Roadster
Car Body Style
Roadster
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
7-speed dual clutch transmission
Transmission
8-speed automatic transmission

Engine

Z4 Roadster sDrive35is
Z4 Roadster sDrive20i
Straight-six petrol engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-four petrol engine with tur­bo­charger
BMW N54
Engine Series
BMW N20
N54-B30
Engine Code
N20-B20
4
Valves
4
6
Cylinders
4
2979 CC
Engine Capacity
1997 CC
335 bhp
at 5900 rpm
Power
181 bhp
at 5000 rpm
Z4 Roadster sDrive35is
335 bhp
181 bhp
Z4 Roadster sDrive20i
450 NM
at 1500 rpm
Max. Torque
270 NM
at 1250 rpm
Z4 Roadster sDrive35is
450 NM
270 NM
Z4 Roadster sDrive20i

Performance

Z4 Roadster sDrive35is
Z4 Roadster sDrive20i
155 mph
Maximum Speed
144 mph
4.8 sec
Acceleration 0 to 62 mph
7.2 sec
62 mph 62
mph

67 m
0.000 sec

Z4 Roadster sDrive35is

62 mph 62
mph

100 m
0.000 sec

Z4 Roadster sDrive20i

▶ REPLAY
4.78 kg/bhp
Weight-to-Power Ratio
8.26 kg/bhp
Z4 Roadster sDrive35is
4.78 kg/bhp
8.26 kg/bhp
Z4 Roadster sDrive20i

Fuel Economy / Emissions

Z4 Roadster sDrive35is
Z4 Roadster sDrive20i
Fuel Economy
31 mpg
combined
42 mpg
Z4 Roadster sDrive35is
31 mpg
42 mpg
Z4 Roadster sDrive20i
22 mpg
city
31 mpg
No data
motorway
No data
Kraftstoffanzeige
55 L
Fuel Tank Capacity
55 L
Kraftstoffanzeige
380 mi
Range
503 mi
Z4 Roadster sDrive35is
380 mi
503 mi
Z4 Roadster sDrive20i
Environmental Impact
170.4 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 sDrive35is
170.4 kWh
128.7 kWh
Z4 Roadster sDrive20i
Euro 5
Emission Standard
Euro 5
210 g/km (NEFZ)
CO2 Emissions
159 g/km (NEFZ)

Practical Convenience

Z4 Roadster sDrive35is
Z4 Roadster sDrive20i
2
Doors
2
2
No. of Seats
2
255 kg
Maximum Payload
255 kg
310 L
Boot Capacity
310 L
No data
Boot Capacity (Seats Down)
No data