The Comparative Analysis :

BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13) vs. BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

€ 46,000
BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13) Z4 Roadster sDrive28i
€ 61,000
 BMW Z4 Roadster M40i Steptronic Sport (19 - ..) Z4 Roadster M40i
€ 46,000
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 sDrive28i 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 sDrive28i
Z4 Roadster M40i
50.8
Blueprint BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13)
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 sDrive28i Sport-Automatic (11 - 13)
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 sDrive28i
Z4 Roadster M40i
3296 lb
Curb Weight
3549 lb
3858 lb
Gross Vehicle
Weight
4101 lb
BMW Z4 Roadster sDrive28i Sport-Automatic (11 - 13)
Weight Difference:
254 lb
7.16 %
BMW Z4 Roadster M40i Steptronic Sport (19 - ..)

General

Z4 Roadster sDrive28i
Z4 Roadster M40i
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 sDrive28i
Z4 Roadster M40i
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
BMW N20
Engine Series
BMW B58
N20-B20
Engine Code
B58-B30
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
242 hp
at 5000 rpm
Power
335 hp
at 5000 rpm
Z4 Roadster sDrive28i
242 hp
335 hp
Z4 Roadster M40i
258 lb‑ft
at 1250 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Z4 Roadster sDrive28i
258 lb‑ft
369 lb‑ft
Z4 Roadster M40i

Performance

Z4 Roadster sDrive28i
Z4 Roadster M40i
155 mph
Maximum Speed
155 mph
5.7 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

259 ft
0.000 sec

Z4 Roadster sDrive28i

62 mph 62
mph

207 ft
0.000 sec

Z4 Roadster M40i

▶ REPLAY
13.62 lb/hp
Weight-to-Power Ratio
10.59 lb/hp
Z4 Roadster sDrive28i
13.62 lb/hp
10.59 lb/hp
Z4 Roadster M40i

Fuel Economy / Emissions

Z4 Roadster sDrive28i
Z4 Roadster M40i
Fuel Economy
35 mpg
combined
33 mpg
Z4 Roadster sDrive28i
35 mpg
33 mpg
Z4 Roadster M40i
26 mpg
city
26 mpg
No data
highway
No data
Kraftstoffanzeige
14.5 gal
Fuel Tank Capacity
13.7 gal
Kraftstoffanzeige
503 mi
Range
455 mi
Z4 Roadster sDrive28i
503 mi
455 mi
Z4 Roadster M40i
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).
134.5 kWh
Z4 Roadster sDrive28i
128.7 kWh
134.5 kWh
Z4 Roadster M40i
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
256 g/mi (NEFZ)
CO2 Emissions
307 g/mi (WLTP)

Practical Convenience

Z4 Roadster sDrive28i
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