BMW M850i xDrive Convertible:
Fuel consumption in l/100 km (combined): 11.0–10.7
CO2 emissions in g/km (combined): 249–243
BMW 840i xDrive Convertible:
Fuel consumption in l/100 km (combined): 9.2–8.8
CO2 emissions in g/km (combined): 209–200
BMW 840i Convertible:
Fuel consumption in l/100 km (combined): 8.8–8.4
CO2 emissions in g/km (combined): 201–191
BMW 840d xDrive Convertible:
Fuel consumption in l/100 km (combined): 7.2–6.9
CO2 emissions in g/km (combined): 189-180
Official data for fuel consumption, CO2 emissions, power consumption and electric range was determined in accordance with the prescribed measuring procedure and corresponds to European Regulation (EC) 715/2007 in the applicable version. For ranges, data determined as per WLTP takes into account any optional equipment (available on the German market in this case). For vehicles that have been newly type approved since 1 January 2021, only the official data according to WLTP exists. In addition, NEDC values are deleted from the certificates of conformity as of 1 January 2023 by EC regulation 2022/195.
For more information about NEDC and WLTP measuring procedures visit www.bmw.com/wltp
Further information about fuel consumption and official model-specific CO2 emissions of new passenger cars can be found in the "Guideline for fuel consumption, CO2 emissions and electric power consumption for new passenger cars", available free of charge at all points of sale, at the Deutsche Automobil Treuhand GmbH (DAT), Hellmuth-Hirth-Str. 1, 73760 Ostfildern-Scharnhausen, Germany, and under https://www.dat.de/co2/.
Performance data of petrol engines apply to vehicles using RON 98 fuel. Fuel consumption data apply to vehicles using reference fuels in accordance with EU Regulation 715/2007. Unleaded RON 91 and higher with a maximum ethanol content of 10% (E10) may also be used. BMW recommends RON 95 fuel. For high-performance automobiles, BMW recommends RON 98 fuel.