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MORE AGILITY. LESS DRAG.
Aerodynamics
Good ideas don’t always have to be complicated: thanks to targeted aerodynamic measures such as air vent control, the active rear spoiler or the Air Curtain in the front apron, your BMW is able to achieve an optimised drag coefficient. This has a positive effect on efficiency and driving stability while also reducing the noise level in the cabin. See for yourself.
Good ideas don’t always have to be complicated: thanks to targeted aerodynamic measures such as air vent control, the active rear spoiler or the Air Curtain in the front apron, your BMW is able to achieve an optimised drag coefficient. This has a positive effect on efficiency and driving stability while also reducing the noise level in the cabin. See for yourself.


AIR CURTAIN.
While you control your vehicle, the Air Curtain controls the airstream. This is because it reduces the air resistance of the body in an astonishingly simple, yet highly effective way. Its narrowing channels speed up the airstream and guide it past the wheels. This reduces the air turbulence in the wheel housings and decreases the drag due to the body as well as the fuel consumption and CO2 emissions.

AIR BREATHER.

ACTIVE REAR SPOILER.
As speed increases, there is a rise in the forces acting on the body of the vehicle. At a speed of 110 km/h, the active rear spoiler extends automatically. Drag is reduced, roadholding is optimised, lift on the rear axles is decreased. In addition, fuel consumption and thus CO2 emissions are reduced. At a speed of 70 km/h, the rear spoiler retracts automatically.





AERODYNAMICS IN THE BMW i8.
Streamlined bodyshell, a striking conical shape, low weight – the BMW i8 clearly displays its character as a thoroughbred sports car. An array of aerodynamically optimised features ensures that maximum dynamics and optimum efficiency are achieved at the same time. One example of this can be seen in the LED rear lights created with the layering design principles and constructed as air channels through which the airstream flows.
Fuel consumption and CO2 emissions for the BMW i8 (3):
Combined fuel consumption in l/100 km: 1.9
Combined CO2 emissions in g/km: 42
Combined electricity consumption in kWh/100 km: 14.0
Fuel consumption and CO2 emissions.
Further information on the official fuel consumption and on the official specific CO2 emissions of new automobiles can be found in the guidelines on fuel consumption and CO2 emissions of new automobiles which are available free of charge at all retail outlets and from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Str. 1, 73760 Ostfildern, Germany.
AERODYNAMIC MEASURES.

Small details, great benefits.

Active rear spoiler.

Air Curtain.

Air vent control.

Air Blade.

Aero wheel rims.

Air Breather.



AERODYNAMICS IN THE BMW i8.
Streamlined bodyshell, a striking conical shape, low weight – the BMW i8 clearly displays its character as a thoroughbred sports car. An array of aerodynamically optimised features ensures that maximum dynamics and optimum efficiency are achieved at the same time. One example of this can be seen in the LED rear lights created with the layering design principles and constructed as air channels through which the airstream flows.
Combined fuel consumption in l/100 km: 2.1
Combined CO2 emissions in g/km: 49
Combined electricity consumption in kWh/100 km: 11.9
INTELLIGENT ENERGY MANAGEMENT.

Economical driving. Unlimited enjoyment.

Brake Energy Regeneration.

ECO PRO mode.

Electric Power Steering.

Bonus range.



Optimum Shift Indicator
Choosing the right moment to change gear is a key to efficiency. The most efficient gear at any point in time is calculated according to the driving situation together with the engine speed and then shown in the Info Display.
The system also recognises rapid acceleration and will delay its recommendation accordingly until the engine speed is up. Comparative tests have shown that vehicles with the Optimum Shift Indicator use around four per cent less fuel.
Automatic Start/Stop function
Save fuel effectively: The Automatic Start/Stop function ensures that fuel is only consumed when the car is moving. When the vehicle comes to a temporary stop, for example at traffic lights or in congested traffic, the Automatic Start/Stop function saves fuel by simply switching off the engine. As soon as the clutch is depressed (manual transmission) or the brake is released (Steptronic transmission), the engine starts up again automatically in a fraction of a second.
Tyres with reduced rolling resistance
On the motorway. In the city. Everywhere. Wherever you drive – your tyres are constantly subjected to powerful forces during driving. During contact with the road, their shape changes. This deformation is only reversed when there is no more road contact. Tyres with reduced rolling resistance employ special materials to reinforce the tread and sidewalls which decrease flexing compared to conventionally designed tyres – and this noticeably reduces fuel consumption and emissions.
Fuel consumption and CO2 emissions.
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.
(1) The values are applicable until 15.04.2018. Please check availability with your BMW dealer.
The values of the vehicles labeled with (3), 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 further information about the official fuel consumption and the specific CO2 emission of new passenger cars can be taken out of the „handbook of fuel consumption, the CO2 emission and power consumption of new passenger cars“, which is available at all selling points and at https://www.dat.de/angebote/verlagsprodukte/leitfaden-kraftstoffverbrauch.html.