The Comparative Analysis :

BMW Z4 Roadster sDrive20i (19 - ..) vs. BMW Z4 Roadster sDrive28i Automatic (13 - 16)

€ 41,000
BMW Z4 Roadster sDrive20i (19 - ..) Z4 Roadster sDrive20i
€ 46,600
 BMW Z4 Roadster sDrive28i Automatic (13 - 16) Z4 Roadster sDrive28i
€ 41,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,600

ⓘ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 8.5 cm longer, 7.4 cm wider and 1.3 cm taller than the Z4 Roadster sDrive28i.
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
1304
Blueprint BMW Z4 Roadster sDrive20i (19 - ..)
1864
2024
1291
Blueprint BMW Z4 Roadster sDrive28i Automatic (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 sDrive20i (19 - ..)
2470
4324
Blueprint BMW Z4 Roadster sDrive28i Automatic (13 - 16)
2496
4239
4324 mm
Length
4239 mm
2470 mm
Wheelbase
2496 mm

Vehicle Weight

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
1480 kg
Kerb Weight
1495 kg
1725 kg
Gross Vehicle
Weight
1750 kg
BMW Z4 Roadster sDrive20i (19 - ..)
Weight Difference:
15 kg
1 %
BMW Z4 Roadster sDrive28i Automatic (13 - 16)

General

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
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
8-speed automatic transmission

Engine

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
Straight-four petrol engine with tur­bo­charger
Engine Type
Straight-four petrol engine with tur­bo­charger
BMW B48
Engine Series
BMW N20
B48-B20
Engine Code
N20-B20
4
Valves
4
4
Cylinders
4
1998 CC
Engine Capacity
1997 CC
194 bhp
at 4500 rpm
Power
242 bhp
at 5000 rpm
Z4 Roadster sDrive20i
194 bhp
242 bhp
Z4 Roadster sDrive28i
320 NM
at 1450 rpm
Max. Torque
350 NM
at 1250 rpm
Z4 Roadster sDrive20i
320 NM
350 NM
Z4 Roadster sDrive28i

Performance

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
150 mph
Maximum Speed
155 mph
6.8 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph 62
mph

94 m
0.000 sec

Z4 Roadster sDrive20i

62 mph 62
mph

79 m
0.000 sec

Z4 Roadster sDrive28i

▶ REPLAY
7.63 kg/bhp
Weight-to-Power Ratio
6.18 kg/bhp
Z4 Roadster sDrive20i
7.63 kg/bhp
6.18 kg/bhp
Z4 Roadster sDrive28i

Fuel Economy / Emissions

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
Fuel Economy
42 mpg
combined
42 mpg
Z4 Roadster sDrive20i
42 mpg
42 mpg
Z4 Roadster sDrive28i
31 mpg
city
30 mpg
No data
motorway
No data
Kraftstoffanzeige
52 L
Fuel Tank Capacity
55 L
Kraftstoffanzeige
475 mi
Range
503 mi
Z4 Roadster sDrive20i
475 mi
503 mi
Z4 Roadster sDrive28i
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).
128.7 kWh
Z4 Roadster sDrive20i
128.7 kWh
128.7 kWh
Z4 Roadster sDrive28i
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
164 g/km (WLTP)
CO2 Emissions
159 g/km (NEFZ)

Practical Convenience

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
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