The Comparative Analysis :
BMW Z4 Roadster sDrive20i Automatic (13 - 16) vs. BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..)
€ 39,600

€ 43,300

€ 39,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 43,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Z4 Roadster sDrive20i Automatic is slightly smaller in every dimension. It's 3.3 inches shorter, 2.9 inches narrower and 0.5 inches lower than the Z4 Roadster sDrive20i Steptronic.
Z4 Roadster sDrive20i Automatic
Z4 Roadster sDrive20i Steptronic
50.8
70.5
76.8
51.3
73.4
79.7
70.5 in
Width
73.4 in
76.8 in
Width Incl. Mirrors
79.7 in
50.8 in
Height
51.3 in
98.3
166.9
97.2
170.2
166.9 in
Length
170.2 in
98.3 in
Wheelbase
97.2 in
Vehicle Weight
Z4 Roadster sDrive20i Automatic
Z4 Roadster sDrive20i Steptronic
3296 lb
Curb Weight
3296 lb
3858 lb
Gross Vehicle
Weight
Weight
3836 lb

Weight Difference:
0 lb
0 %

General
Z4 Roadster sDrive20i Automatic
Z4 Roadster sDrive20i Steptronic
E89
Generation
G29
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Z4 Roadster sDrive20i Automatic
Z4 Roadster sDrive20i Steptronic
Straight-four gasoline engine with turbocharger
Engine Type
Straight-four gasoline engine with turbocharger
BMW N20
Engine Series
BMW B48
N20-B20
Engine Code
B48-B20


4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
181 hp
at 5000 rpm
Power
194 hp
at 4500 rpm
Z4 Roadster sDrive20i Automatic
181 hp
194 hp
Z4 Roadster sDrive20i Steptronic
199 lb‑ft
at 1250 rpm
Max. Torque
236 lb‑ft
at 1450 rpm
Z4 Roadster sDrive20i Automatic
199 lb‑ft
236 lb‑ft
Z4 Roadster sDrive20i Steptronic
Performance
Z4 Roadster sDrive20i Automatic
Z4 Roadster sDrive20i Steptronic
144 mph
Maximum Speed
149 mph
7.2 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
328 ft
0.000 sec

Z4 Roadster sDrive20i Automatic
62 mph
62
mph
mph
302 ft
0.000 sec

Z4 Roadster sDrive20i Steptronic
▶ REPLAY
18.21 lb/hp
Weight-to-Power Ratio
16.99 lb/hp
Z4 Roadster sDrive20i Automatic
18.21 lb/hp
16.99 lb/hp
Z4 Roadster sDrive20i Steptronic
Fuel Economy / Emissions
Z4 Roadster sDrive20i Automatic
Z4 Roadster sDrive20i Steptronic
Fuel Economy
35 mpg
combined
39 mpg
Z4 Roadster sDrive20i Automatic
35 mpg
39 mpg
Z4 Roadster sDrive20i Steptronic
25 mpg
city
32 mpg
No data
highway
No data
14.5 gal
Fuel Tank Capacity
13.7 gal
503 mi
Range
529 mi
Z4 Roadster sDrive20i Automatic
503 mi
529 mi
Z4 Roadster sDrive20i Steptronic
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).
115.6 kWh
Z4 Roadster sDrive20i Automatic
128.7 kWh
115.6 kWh
Z4 Roadster sDrive20i Steptronic
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
256 g/mi (NEFZ)
CO2 Emissions
269 g/mi (WLTP)
Practical Convenience
Z4 Roadster sDrive20i Automatic
Z4 Roadster sDrive20i Steptronic
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
540 lb
8.8 cu ft
Trunk Volume
8 cu ft








No data
Cargo Volume (Seats Down)
No data