The Comparative Analysis :

BMW Z4 Roadster sDrive23i Sport-Automatic (09 - 11) vs. BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

€ 38,800
BMW Z4 Roadster sDrive23i Sport-Automatic (09 - 11) Z4 Roadster sDrive23i
€ 61,000
 BMW Z4 Roadster M40i Steptronic Sport (19 - ..) Z4 Roadster M40i
€ 38,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 61,000

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The Z4 Roadster sDrive23i 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 M40i.
Z4 Roadster sDrive23i
Z4 Roadster M40i
50.8
Blueprint BMW Z4 Roadster sDrive23i Sport-Automatic (09 - 11)
70.5
76.8
51.3
Blueprint BMW Z4 Roadster M40i 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 sDrive23i Sport-Automatic (09 - 11)
98.3
166.9
Blueprint BMW Z4 Roadster M40i 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 sDrive23i
Z4 Roadster M40i
3318 lb
Curb Weight
3549 lb
3880 lb
Gross Vehicle
Weight
4101 lb
BMW Z4 Roadster sDrive23i Sport-Automatic (09 - 11)
Weight Difference:
231 lb
6.51 %
BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

General

Z4 Roadster sDrive23i
Z4 Roadster M40i
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 sDrive23i
Z4 Roadster M40i
Straight-six gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
BMW N52
Engine Series
BMW B58
N52-B25
Engine Code
B58-B30
4
Valves
4
6
Cylinders
6
2.5 L / 122 cu in
Displacement
3 L / 147 cu in
201 hp
at 6300 rpm
Power
335 hp
at 5000 rpm
Z4 Roadster sDrive23i
201 hp
335 hp
Z4 Roadster M40i
184 lb‑ft
at 2750 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Z4 Roadster sDrive23i
184 lb‑ft
369 lb‑ft
Z4 Roadster M40i

Performance

Z4 Roadster sDrive23i
Z4 Roadster M40i
149 mph
Maximum Speed
155 mph
7.3 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

331 ft
0.000 sec

Z4 Roadster sDrive23i

62 mph 62
mph

207 ft
0.000 sec

Z4 Roadster M40i

▶ REPLAY
16.51 lb/hp
Weight-to-Power Ratio
10.59 lb/hp
Z4 Roadster sDrive23i
16.51 lb/hp
10.59 lb/hp
Z4 Roadster M40i

Fuel Economy / Emissions

Z4 Roadster sDrive23i
Z4 Roadster M40i
Fuel Economy
29 mpg
combined
33 mpg
Z4 Roadster sDrive23i
29 mpg
33 mpg
Z4 Roadster M40i
20 mpg
city
26 mpg
No data
highway
No data
Kraftstoffanzeige
14.5 gal
Fuel Tank Capacity
13.7 gal
Kraftstoffanzeige
417 mi
Range
455 mi
Z4 Roadster sDrive23i
417 mi
455 mi
Z4 Roadster M40i
Environmental Impact
155.3 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).
134.5 kWh
Z4 Roadster sDrive23i
155.3 kWh
134.5 kWh
Z4 Roadster M40i
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
309 g/mi (NEFZ)
CO2 Emissions
307 g/mi (WLTP)

Practical Convenience

Z4 Roadster sDrive23i
Z4 Roadster M40i
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
551 lb
8.8 cu ft
Trunk Volume
8 cu ft
No data
Cargo Volume (Seats Down)
No data