BMW Z4 Roadster, technical data


Technical data.

THE BMW Z4 ROADSTER.Technical data.


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Unladen weight EU in kg 1.495
Max. permissible weight in kg 1,740
Permitted load in kg 320
Permitted axle load front/rear in kg 830/935
Luggage capacity in l 281
Trailer load 8% (braked) in kg -


Cylinders/valves 4/4
Capacity in ccm 1,998
Stroke/bore in mm 94.6/82.0
Engine power in kW (PS) at 1/min 145 (197)/4,500-6,500
Engine torque (Nm) at 1/min 320/1,450-4,200
Compression ratio : 1 10.2


Top speed in km/h 240
Acceleration 0–100 km/h in s 6.6

Fuel consumption

Urban in l/100 km 7.3
Extra-urban in l/100 km 5.4-5.2
Combined in l/100 km 6.1-6.0
CO2 combined emissions in g/km 139-136
Electricity consumption combined in kWh/100km -
Tank capacity, approx. in l 52


Tyre dimensions front 225/50 R17 94W
Tyre dimensions rear 225/50 R17 98W
Wheel dimensions and material front 7.5 J x 17 inches, light-alloy
Wheel dimensions and material rear 8.5 J x 17 inches, light-alloy

Fuel consumption and CO2 emissions.

  • BMW Z4 Roadster M40i:
    Fuel consumption in l/100 km (combined): 7.4-7.1
    CO2 emissions in g/km (combined): 168-162

    The illustrations show optional equipment.

    The information on fuel consumption, CO2 emissions and energy consumption has been determined in accordance with the prescribed measurement procedure VO (EU) 715/2007 in the version applicable at the time of type approval. The figures refer to a vehicle with basic configuration in Germany and the range shown considers optional equipment and the different size of wheels and tires available on the selected model.

    Further information about the official fuel consumption and the official specific CO2 emissions for new passenger automobiles cars can be found in the 'New Passenger Vehicle Fuel Consumption and CO2 Emission Guidelines', which are available free of charge at all sales outlets and from The Society of the Irish Motor Industry, 5 Upper Pembroke Street, Dublin 2.

    The values are already based on the new WLTP regulation and are translated back into NEDC-equivalent values in order to ensure the comparison between the vehicles. For vehicle related taxes or other duties based (at least inter alia) on CO2-emissions the CO2 values may differ to the values stated here.