The Comparative Analysis :

BMW Z4 Roadster sDrive20i (19 - ..) vs. BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13)

€ 41,000
BMW Z4 Roadster sDrive20i (19 - ..) Z4 Roadster sDrive20i
€ 46,000
 BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13) Z4 Roadster sDrive28i
€ 41,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,000

ⓘ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 3.3 inches longer, 2.9 inches wider and 0.5 inches taller than the Z4 Roadster sDrive28i.
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
51.3
Blueprint BMW Z4 Roadster sDrive20i (19 - ..)
73.4
79.7
50.8
Blueprint BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13)
70.5
76.8
73.4 in
Width
70.5 in
79.7 in
Width Incl. Mirrors
76.8 in
51.3 in
Height
50.8 in
Blueprint BMW Z4 Roadster sDrive20i (19 - ..)
97.2
170.2
Blueprint BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13)
98.3
166.9
170.2 in
Length
166.9 in
97.2 in
Wheelbase
98.3 in

Vehicle Weight

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
3263 lb
Curb Weight
3296 lb
3803 lb
Gross Vehicle
Weight
3858 lb
BMW Z4 Roadster sDrive20i (19 - ..)
Weight Difference:
33 lb
1 %
BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13)

General

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
G29
Generation
E89
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
8-speed automatic transmission

Engine

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-four gasoline engine with tur­bo­charger
BMW B48
Engine Series
BMW N20
B48-B20
Engine Code
N20-B20
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
2 L / 98 cu in
194 hp
at 4500 rpm
Power
242 hp
at 5000 rpm
Z4 Roadster sDrive20i
194 hp
242 hp
Z4 Roadster sDrive28i
236 lb‑ft
at 1450 rpm
Max. Torque
258 lb‑ft
at 1250 rpm
Z4 Roadster sDrive20i
236 lb‑ft
258 lb‑ft
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

308 ft
0.000 sec

Z4 Roadster sDrive20i

62 mph 62
mph

259 ft
0.000 sec

Z4 Roadster sDrive28i

▶ REPLAY
16.82 lb/hp
Weight-to-Power Ratio
13.62 lb/hp
Z4 Roadster sDrive20i
16.82 lb/hp
13.62 lb/hp
Z4 Roadster sDrive28i

Fuel Economy / Emissions

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
Fuel Economy
35 mpg
combined
35 mpg
Z4 Roadster sDrive20i
35 mpg
35 mpg
Z4 Roadster sDrive28i
26 mpg
city
26 mpg
No data
highway
No data
Kraftstoffanzeige
13.7 gal
Fuel Tank Capacity
14.5 gal
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 5
264 g/mi (WLTP)
CO2 Emissions
256 g/mi (NEFZ)

Practical Convenience

Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
2
Doors
2
2
No. of Seats
2
540 lb
Maximum Payload
562 lb
8 cu ft
Trunk Volume
8.8 cu ft
No data
Cargo Volume (Seats Down)
No data