The Comparative Analysis :
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) vs. BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11)
€ 39,000
€ 45,800
€ 39,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 45,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of the Z4 Roadster sDrive20i and the Z4 Roadster sDrive30i are absolutely identical. Both are 166.9 inches long, 70.5 inches wide and 50.8 inches tall.
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
50.8
70.5
76.8
50.8
70.5
76.8
70.5 in
Width
70.5 in
76.8 in
Width Incl. Mirrors
76.8 in
50.8 in
Height
50.8 in
98.3
166.9
98.3
166.9
166.9 in
Length
166.9 in
98.3 in
Wheelbase
98.3 in
Vehicle Weight
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
3296 lb
Curb Weight
3318 lb
3858 lb
Gross Vehicle
Weight
Weight
3880 lb
Weight Difference:
22 lb
0.66 %
General
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
E89
Generation
E89
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
BMW N20
Engine Series
BMW N52
N20-B20
Engine Code
N52-B30
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
181 hp
at 5000 rpm
Power
254 hp
at 6600 rpm
Z4 Roadster sDrive20i
181 hp
254 hp
Z4 Roadster sDrive30i
199 lb‑ft
at 1250 rpm
Max. Torque
229 lb‑ft
at 2600 rpm
Z4 Roadster sDrive20i
199 lb‑ft
229 lb‑ft
Z4 Roadster sDrive30i
Performance
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
144 mph
Maximum Speed
155 mph
7.2 sec
Acceleration 0 to 62 mph
6.1 sec
62 mph
62
mph
mph
328 ft
0.000 sec
Z4 Roadster sDrive20i
62 mph
62
mph
mph
279 ft
0.000 sec
Z4 Roadster sDrive30i
▶ REPLAY
18.21 lb/hp
Weight-to-Power Ratio
13.06 lb/hp
Z4 Roadster sDrive20i
18.21 lb/hp
13.06 lb/hp
Z4 Roadster sDrive30i
Fuel Economy / Emissions
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
Fuel Economy
35 mpg
combined
28 mpg
Z4 Roadster sDrive20i
35 mpg
28 mpg
Z4 Roadster sDrive30i
26 mpg
city
20 mpg
No data
highway
No data
14.5 gal
Fuel Tank Capacity
14.5 gal
503 mi
Range
412 mi
Z4 Roadster sDrive20i
503 mi
412 mi
Z4 Roadster sDrive30i
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).
157.2 kWh
Z4 Roadster sDrive20i
128.7 kWh
157.2 kWh
Z4 Roadster sDrive30i
Euro 5
Emission Standard
Euro 5
256 g/mi (NEFZ)
CO2 Emissions
314 g/mi (NEFZ)
Practical Convenience
Z4 Roadster sDrive20i
Z4 Roadster sDrive30i
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
562 lb
8.8 cu ft
Trunk Volume
8.8 cu ft
No data
Cargo Volume (Seats Down)
No data
