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Every BMW has BMW EfficientDynamics technologies such as Auto Start-Stop, Brake Energy Regeneration and Electric Power Steering as standard features. Combining to provide intelligent energy management, these technologies ensure sustainable mobility today. In particular, the aerodynamically optimised design has the effect of delivering greater dynamics and efficiency.


Small details,
big benefits.

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 Aero 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.

Active rear spoiler.

As speed increases, there is a rise in the forces acting on the body
of the vehicle. At a speed of 68 mph, the active rear spoiler extends
automatically. Drag is reduced, roadholding is optimised and lift on the
rear axles is decreased. In addition, fuel consumption (and thus
CO₂ emissions) is reduced. At a speed of 43 mph, the rear spoiler retracts

Aero Curtain.

While you control the car, the Aero 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, as well as the fuel consumption
and CO2 emissions.

Air vent control.

The air vent control knows when engine, brakes and other
components need air and automatically opens the air vents.
If no further air intake is required, it closes them again.
This improves aerodynamics and fuel consumption falls.

Air Blade.

The Air Blade is a sharp-edged extension of the C-pillar that separates the
air flow and thus reduces the wake behind the vehicle. This lowers the
aerodynamic drag at the rear, which in turn reduces both fuel consumption
and CO2 emissions.

Aero wheel rims.

Flow-optimised aero wheel rims in Turbine styling guide the
airflow optimally along the sides of the vehicle and thus
enhance the aerodynamics of the vehicle.

Air Breather.

As you accelerate, you won’t detect any air resistance - this is
because the Air Breather channels the air on the front wheels.
It reduces turbulence on the wheel housings and breaks down
the air swirls. Fuel consumption and CO2 emissions are decreased.

Aerodynamics in the BMW i8.

Streamlined body shell, a striking conical shape and low weight – the BMW i8 clearly displays its character as a thoroughbred sports car. An array of aerodynamically optimised features ensure that maximum dynamics and optimum efficiency are achieved. One example of this can be seen in the LED rear lights, which are created to layering design principles and constructed as air channels through which the airstream flows.


Economical driving.
Unlimited enjoyment.

Innovative technologies such as Electric Power Steering, the
ECO PRO mode or Brake Energy Regeneration combine to save
energy and increase driving pleasure.

Brake Energy

As you press down on the brake, energy is produced. This is
valuable kinetic energy that can be exploited. Brake Energy
Regeneration transforms it into electrical energy and uses it to
charge the battery. This means less effort is also required from
the engine to charge the battery, which in turn reduces fuel
consumption and emissions.


ECO PRO mode permits fuel savings of up to 20%, without you
having to take any action. On top of this, approximately 5% fuel
can be saved by means of additional functions. The overall saving
is converted into a specific mileage and displayed as a bonus range
in the on-board computer. As a result, it is possible to see what
distance can be covered at all times.

Electric Power Steering.

Conventional systems for supporting the driver’s steering power
are made possible by hydraulics. They are in permanent operation
– even if the driver is not moving the steering wheel at all. And
this costs energy. In the case of Electric Power Steering, an electric
motor replaces the hydraulics and only becomes active when the
driver actually moves the steering wheel. On straight roads or with
a constant steering angle in corners, the system does not intervene
and uses no energy. Fuel consumption is reduced as a result, while
the typical BMW dynamic driving experience is retained.

Bonus range.

The consumption-optimised ECO PRO mode ensures that
the accelerator pedal and transmission parameters together
with the heating/climate control strategy are all intelligently
adapted. ECO PRO tips help you to enhance your own driving
behaviour and the Bonus range informs you of how many
additional miles you have gained by driving his way.

Energy-saving technologies for efficient driving pleasure.

Different situations demand different responses. Energy-saving technologies such as the Optimum Shift Indicator or Auto Start-Stop help the driver to choose a better course of action and thus drive more efficiently.

Optimum Shift Indicator.

Auto Start-Stop

Tyres with reduced rolling resistance.

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