The Comparative Analysis :

BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11) vs. BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..)

€ 45,800
BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11) Z4 Roadster sDrive30i
€ 43,300
 BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..) Z4 Roadster sDrive20i
€ 45,800
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 sDrive30i 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.
Z4 Roadster sDrive30i
Z4 Roadster sDrive20i
50.8
Blueprint BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11)
70.5
76.8
51.3
Blueprint BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..)
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
Blueprint BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11)
98.3
166.9
Blueprint BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..)
97.2
170.2
166.9 in
Length
170.2 in
98.3 in
Wheelbase
97.2 in

Vehicle Weight

Z4 Roadster sDrive30i
Z4 Roadster sDrive20i
3318 lb
Curb Weight
3296 lb
3880 lb
Gross Vehicle
Weight
3836 lb
BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11)
Weight Difference:
22 lb
0.66 %
BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..)

General

Z4 Roadster sDrive30i
Z4 Roadster sDrive20i
E89
Generation
G29
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

Z4 Roadster sDrive30i
Z4 Roadster sDrive20i
Straight-six gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
Engine Type
Straight-four gasoline engine with tur­bo­charger
BMW N52
Engine Series
BMW B48
N52-B30
Engine Code
B48-B20
4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
254 hp
at 6600 rpm
Power
194 hp
at 4500 rpm
Z4 Roadster sDrive30i
254 hp
194 hp
Z4 Roadster sDrive20i
229 lb‑ft
at 2600 rpm
Max. Torque
236 lb‑ft
at 1450 rpm
Z4 Roadster sDrive30i
229 lb‑ft
236 lb‑ft
Z4 Roadster sDrive20i

Performance

Z4 Roadster sDrive30i
Z4 Roadster sDrive20i
155 mph
Maximum Speed
149 mph
6.1 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph 62
mph

279 ft
0.000 sec

Z4 Roadster sDrive30i

62 mph 62
mph

302 ft
0.000 sec

Z4 Roadster sDrive20i

▶ REPLAY
13.06 lb/hp
Weight-to-Power Ratio
16.99 lb/hp
Z4 Roadster sDrive30i
13.06 lb/hp
16.99 lb/hp
Z4 Roadster sDrive20i

Fuel Economy / Emissions

Z4 Roadster sDrive30i
Z4 Roadster sDrive20i
Fuel Economy
28 mpg
combined
39 mpg
Z4 Roadster sDrive30i
28 mpg
39 mpg
Z4 Roadster sDrive20i
20 mpg
city
32 mpg
No data
highway
No data
Kraftstoffanzeige
14.5 gal
Fuel Tank Capacity
13.7 gal
Kraftstoffanzeige
412 mi
Range
529 mi
Z4 Roadster sDrive30i
412 mi
529 mi
Z4 Roadster sDrive20i
Environmental Impact
157.2 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).
115.6 kWh
Z4 Roadster sDrive30i
157.2 kWh
115.6 kWh
Z4 Roadster sDrive20i
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
314 g/mi (NEFZ)
CO2 Emissions
269 g/mi (WLTP)

Practical Convenience

Z4 Roadster sDrive30i
Z4 Roadster sDrive20i
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