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.

  • The values for fuel consumption, CO2 emissions and energy consumption shown have been determined according to the WLTP test. WLTP has been used as the applicable fuel and energy consumption and CO2 emissions figure from 1 January 2021 for vehicle registration tax (VRT). The figures were previously based on the NEDC equivalent. Figures shown are for comparability purposes. Only compare fuel consumption, CO2 and electric range figures with other cars tested to the same technical procedures. These figures may not reflect real life driving results, which will depend upon a number of factors including the starting charge of the battery, accessories fitted (post-registration), variations in weather, driving styles and vehicle load. For plug-in hybrid vehicles these figures were obtained using a combination of battery power and fuel. Plug-in hybrid and battery electric vehicles require mains electricity for charging. More information on the WLTP test procedure can be found here:

    A guide on fuel economy and CO2 emissions which contains data for all new passenger car models is available at any point of sale free of charge.