Aerodynamics. M3 and M4 - explained, Episode 12.

Описание: The developers of the BMW M3 and M4 have the floor. No frills; just information — first-hand from those who know best. In Episode 12, Markus, Jonas and Alex talk about the aerodynamics of the new M vehicles.

BMW M3 Competition / BMW M4 Competition:
Fuel consumption in l/100 km (combined): 10.2. CO2 emissions in g/km (combined): 234.
BMW M3 / BMW M4::
Fuel consumption in l/100 km (combined): 10.8. CO2 emissions in g/km (combined): 248.

The values of fuel consumptions, CO2 emissions and energy consumptions shown were determined according to the European Regulation (EC) 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. The values of the vehicles 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. [With respect to these 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.] The CO2 efficiency specifications are determined according to Directive 1999/94/EC and the European Regulation in its current version applicable. The values shown are based on the fuel consumption, CO2 values and energy consumptions according to the NEDC cycle for the classification.

For more information on the WLTP and NEDC test procedures, see https://www.bmw.com/en/innovation/wlt....
Further information on official fuel consumption figures and specific CO2 emission values of new passenger cars is included in the following guideline: 'Leitfaden über den Kraftstoffverbrauch, die CO2-Emissionen und den Stromverbrauch neuer Personenkraftwagen' (Guide to the fuel economy, CO2 emissions and electric power consumption of new passenger cars), which can be obtained free of charge from all dealerships, from Deutsche Automobil Treuhand GmbH (DAT), Hellmuth-Hirth-Str. 1, 73760 Ostfildern-Scharnhausen and at https://www.dat.de/co2.

00:00 Introduction
00:47 Computational Fluid Dynamics
01:27 Wind Tunnel
01:47 Clay Model
03:43 Air Curtain
04:23 Underbody Aerodynamics
04:41 Side Panels
05:02 Trailing Edges
05:29 Rear Spoiler
05:47 Clay Model "in action"
06:07 Refinement
07:41 Underbody
09:15 Race Track Testing

#M3M4explained