(from BMW Group Press
Release) BMW Concept X6 ActiveHybrid.
• World debut of BMW Concept X6 ActiveHybrid – combining significant
enhancement of efficiency with Sheer Driving Pleasure so typical of
• The close and direct link of concepts combining the new Sports
Activity Coupé with innovative BMW ActiveHybrid technology ensures
an authentic match of design and technology in every respect. The
potential of BMW’s ActiveHybrid system develops its optimum effect
in the unique concept of the Sports Activity Coupé. This holistic,
all-round approach sets the stage for an all-new driving experience.
• The BMW Concept X6 ActiveHybrid, the BMW in the world of hybrid
• BMW ActiveHybrid is far superior to conventional hybrid vehicles
in terms of driving dynamics. Its fuel consumption and emission
ratings are up to 20 per cent better than on a comparable car with
conventional drivetrain technology.
• The combination with innovative hybrid technology offers the most
sporting and dynamic rendition of a BMW X Car. Design language
typical of BMW takes up the superior driving dynamics of the Sports
Activity Coupé and visualises this superiority through authentic
design and a unique look. Indeed, the extravagant design of the body
combines the sporting elegance of a BMW Coupé with the striking DNA
of BMW X and provides a clear reference to the innovative drive
• The driving experience in BMW Concept X6 ActiveHybrid corresponds
to the character of a typical BMW based on supreme dynamism and
performance on the road. The car responds directly, spontaneously
and with outstanding precision to the driver’s commands, offering
the driver perfect feedback at all times through touch effects and
acoustic signals, like on a car with a conventional combustion
• BMW ActiveHybrid is a particular highlight of BMW
EfficientDynamics, BMW’s trendsetting development strategy for
today’s world. Introducing this technology, BMW is taking the next
step in the ongoing reduction
of fuel consumption and emissions. BMW ActiveHybrid is based on
a modular concept following the strategy of “Best of Hybrid“ to
integrate the most appropriate, optimum components in each case in
• Interacting with the two-mode active transmission, the concept,
through electrical support, offers two operating modes, one for
setting off and driving at low speeds, one for higher speeds. This
ensures optimum use of the torque generated as a function of driving
• The innovative two-mode active transmission allows variable power
transmission via the power split incorporating planetary gearsets.
In addition, the active transmission incorporates an electric drive
system and enables the vehicle to drive at fixed transmission ratios
within one system. This combines the driving dynamics and efficiency
of the combustion engine and the electric drive system in an
innovative, intelligent manner.
• The powerful presence of the car’s body forms an ideal match with
the flat, sleek flow of the greenhouse roofline. Indeed, this
is a characteristic feature of the car’s coupé silhouette, just like
the short front overhang, the long wheelbase and the long rear
• In its design, BMW Concept X6 ActiveHybrid boasts all the DNA and
genes so characteristic of the BMW X philosophy. The visual balance
of the front and rear wheels to be admired clearly from the side
a clear reference to BMW xDrive, BMW’s intelligent all-wheel-drive
• The second element dominating the design of the body is the clear
orientation to the wheels, the muscular wheel arches and the large
wheels clearly bearing testimony to the stable position and
roadholding of the car.
• The dynamically rising contour line at the side and the growing
distance between the shoulder and the sill-line as the vehicle moves
back create a dynamic wedge shape.
• The striking front view with a clear focus on the vehicle’s width
again provides the typical look of a BMW X car further emphasised by
the extra-large BMW kidney grille also serving as the air intake
with its robust slats.
• The engine compartment lid comes with clearly shaped contours
sub-divided by sharp lines and tapering towards the BMW kidney
grille, as well as a powerful curvature at the top with that
striking BMW powerdome.
• Through their unique shape and design, the D-pillars provide a
clear expression of power and stability. The innovative design of
the rear lights, in turn, emphasises the sheer width of the car,
while horizontal lines highlight the wide track.
• The underfloor protection panels front and rear are made of
brushed aluminium, the rear underfloor panel moving out when
required and covering the tailpipes on BMW Concept X6 ActiveHybrid
on electric power only.
• Door cutout trim with blue stripes and the name “BMW ActiveHybrid”
clearly refer to the unique drive concept of this equally unique
vehicle. The light colour of the body, in turn, forms a clear
contrast to the dark window graphics, and the 21-inch wheels come in
innovative, three-dimensional rim design.
Unique and Only from BMW:
Hybrid Technology with
Sheer Driving Pleasure.
BMW Concept X6 ActiveHybrid.
An innovative vehicle concept and equally innovative drivetrain
are now coming together in a unique car the world has never seen
before: BMW Concept X6 ActiveHybrid is the world’s first Sports
Activity Coupé to feature a special concept of hybrid drive likewise
never seen before – and all this from Germany’s premium car
The result is the first BMW in the hybrid world, BMW Concept X6
ActiveHybrid combining Sheer Driving Pleasure with significant
enhancement of all-round efficiency. Through its drive concept
alone, BMW Concept X6 ActiveHybrid allows far greater driving
dynamics than a conventional hybrid car and at the same time reduces
fuel consumption by up to 20 per cent versus a comparable car
running on a combustion engine alone.
The innovative drivetrain and the unique concept of the Sports
Activity Coupé unparalleled the world over form an ideal match. BMW
ActiveHybrid technology has indeed been developed especially for a
particularly dynamic car in this segment and for extensive use far
beyond city traffic.
In terms of its size, character and driving dynamics, the BMW Sports
Activity Coupé is simply ideal for bringing out the full potential
of BMW ActiveHybrid technology, combining an elegant and dynamically
flowing roofline with the features so typical of a BMW X car. In its
design it clearly bears out the full DNA of BMW X, while
interpreting the character of these cars in a uniquely sporting
Combining the qualities of electric drive and BMW driving
dynamics to provide an unprecedented driving experience.
BMW ActiveHybrid for the first time combines the combustion engine
and two high-performance electric motors to allow use of the greater
efficiency of hybrid technology over a much larger speed range than
with a conventional hybrid vehicle. A further unique point is the
driving experience provided by BMW ActiveHybrid reflecting the
specific features and characteristics of electric drive together
with the proven features of a combustion engine
Responding directly and immediately to the driver’s commands when
setting off, the electric drivetrain contributes its special
qualities right from the start. Then, continuing the process of
acceleration, BMW Concept X6 ActiveHybrid offers a perfect symbiosis
of the drivetrain performance required and appropriate touch-based
and acoustic feedback to the driver never seen before on a hybrid
vehicle. The result is a driving experience at all speeds with that
dynamic development of power and performance so typical
of a BMW engine interacting with the particularly precise and
fast-acting automatic transmission.
BMW ActiveHybrid: the next step in the BMW EfficientDynamics
Offering enhancement of both all-round economy and driving dynamics,
BMW Concept X6 ActiveHybrid fits perfectly into the BMW
EfficientDynamics development strategy. Indeed, implementing this
strategy with full consis-tency, BMW is able to offer cars in all
segments through the current model range ranking right at the top
against the competition in terms of both performance and efficiency.
BMW ActiveHybrid is a firm part of the BMW EfficientDynamics
development strategy. Introducing this technology, BMW is taking the
next step in consistently reducing both fuel consumption and
emissions. BMW ActiveHybrid
is based on a modular principle following the strategy of “Best of
Hybrid” to integrate the optimum components in each case in various
vehicle concepts. And pursuing this strategy, BMW, with its first
full-hybrid car, is now taking
the next step towards lasting and sustainable mobility based on
Sheer Driving Pleasure.
BMW Concept X6 ActiveHybrid is the result of the consistent
development of attractive vehicle concepts and drivetrain
technologies. Inventing the Sports Activity Vehicle (SAV), BMW has
already revolutionised the market by creating a complete, brand-new
segment where previously there was only the sports utility vehicle
(SUV). And given their supreme agility and driving dynamics, both
the BMW X5 and the BMW X3 have now gained a dominating position
in this segment.
Now the concept of a Sports Activity Coupé shows how the range of
BMW X models so successful the world over might be enlarged by
another exclusive variant, while at the same time presenting a
further possibility of experiencing the sporting performance so
typical of the brand in completely new style.
A further highlight is BMW’s outstanding competence in the area of
drivetrain development, setting the basis for combining an
innovative driving experience with outstanding efficiency. Once
again, therefore, BMW is becoming the trendsetter in a market
segment which shows particularly dynamic growth.
A hybrid car with that typical BMW character requires innovative
The objective to combine that Sheer Driving Pleasure so typical of
with a significant reduction of fuel consumption and emissions in
BMW’s first full hybrid, called for the development of innovative
technology offering a synthesis of the combustion engine and the
To make this process of development as efficient as possible, the
BMW Group has joined forces with General Motors and DaimlerChrysler
to form the Global Hybrid Cooperation serving to develop the next
generation of hybrid drive systems. These three equal partners pool
their know-how and resources in the GM, DaimlerChrysler and BMW
Hybrid Development Center in Troy (Michigan, USA, concentrating in
the process on a flexible system concept allowing each of the
companies involved to integrate the particular concept, design and
construction of their cars in the new technology, focusing on
the specific features of each brand. Precisely this is why the
the two-mode active transmission created through this cooperation is
part the BMW ActiveHybrid modular development system.
Optimised use of energy and superior power in every situation.
The innovative power transmission featured by BMW Concept X6
ActiveHybrid combines two compact, high-performance electric motors
with a transmission using fixed transmission ratios. These drive
systems are connected to one another by three planetary gearsets
allowing a power split covering the drive forces of the combustion
engine and the electric motors in two transmission ranges and thus
ensuring a level of variability quite impossible on a conventional hybrid drivetrain thanks to the combination
two drive sources able to provide optimum power and maximum
efficiency under all driving conditions and power requirements from
The system referred to on account of its two operating modes as the
two-mode active transmission also comprises a high-performance
battery, power electronics with an integrated inverter module, and
the cables required.
The two-mode active transmission is based on an ECVT electrical
continu-ously variable transmission. The two operating modes, one of
which has been optimised for low, the other for high speeds, are
supplemented by fixed transmission ratios.
The two power-split ECVT sections allow the drivetrain to run at
continuously variable speeds and ensure full, highly efficient
hybrid functions throughout the complete operating range of the car,
the innovative system in BMW Concept X6 ActiveHybrid thus serving to
reduce fuel consumption by up to 20 per cent compared with a
comparable BMW running on a combustion engine alone.
Given the two-mode system, the electric motors are furthermore very
compact in their dimensions, facilitating integration into the
overall vehicle as well as a minimum increase in weight, which is
lower in the case of
BMW Concept X6 ActiveHybrid than with conventional hybrid cars
offering comparable power.
BMW Concept X6 ActiveHybrid can be driven on electric power only,
on the combustion engine alone, or with a combination of both power
units. Depending on driving conditions, the electric motors may also
be used for both accelerating and regenerative application of the
brakes, in which case the brake forces generated when coasting and
when applying the brakes flowi to the high-volt energy storage unit
to provide an increase in electric power.
This energy subsequently available for further use need not be
generated by the combustion engine and is therefore available
virtually free of charge.
Already using this principle in a similar manner on production cars
featuring Brake Energy Regeneration, BMW is able to ensure efficient
energy management and maintain the battery at a high charge level.
On the road, the support provided by the electric motors in this way
referred to as “boosting” serves, first, to give the car
incomparable spontaneity and a direct response and, second, to
significantly reduce fuel consumption.
BMW ActiveHybrid comes in where conventional hybrid drive reaches
Conventional hybrid systems allow efficient motoring only in
or medium-sized vehicles at relatively low speeds. This is because
most of the power coming from the combustion engine has to be
conveyed most of the time via the electrical path of the
transmission and because of the use
of a high level of electric power. A car with enhanced dynamics,
performance and running speeds would therefore require a larger
combustion engine calling for less efficient, larger and heavier
In the power split drive mode, also referred to as the output
branched concept, one of the two electric motors acts as a
generator, converting some of the engine’s power into electrical
current subsequently fed to the battery
or the second electric motor. The second electric motor then
converts such power coming from the first electric motor or from the
battery back into mechanical power for the output drive shaft on the
Two-mode technology varies the balance of electrical and mechanical
energy on the respective paths for optimum efficiency.
A further point is that a conventional hybrid drive system does not
with fixed mechanical transmission ratios, which would serve to
optimise fuel consumption. Instead, conventional hybrid drivetrains
use a continuously variable transmission, with the disadvantage that
the actual requirement for performance and load feedback from the
car are separated from one another, thus failing to provide a
dynamic driving impression.
The two-mode active transmission, by contrast, overcomes and
eliminates the disadvantages of a conventional hybrid drivetrain. It
reduces the share
of power flowing through the electrical branch of the transmission
throughout a broad range of transmission ratios. Through its power
split in two transmission ranges, the two-mode active transmission
therefore provides the energy of both electric motors in an ideal
form tailored to current driving conditions.
BMW ActiveHybrid: the result of years of research.
The principle of the two-mode active transmission in BMW Concept X6
ActiveHybrid forms a significant milestone in BMW’s ActiveHybrid
strategy, fulfilling the demands made by a broad range of customers
looking for a dynamic, economical and responsible form of motoring.
To reach this goal BMW pursues a clear-cut “Best of Hybrid” strategy
enabling use of the optimum components under a modular principle
within a wide range of different vehicle concepts planned for the
future. Parallel to the Global Hybrid Cooperation, the BMW Group has
therefore entered into yet another joint venture with
DaimlerChrysler, developing components for hybrid drive in the
luxury performance saloon.
BMW started to develop hybrid drive many years ago, long before the
foundation of the Global Hybrid Cooperation. Indeed, BMW tested the
electric drivetrain as early as in the late 1980s, for example in
the BMW E1. And
the BMW Group has been conducting research on hybrid technology and
its various options for more than 15 years, making this technology
and the results already obtained a firm part of the BMW X5
EfficientDynamics development strategy.
In the meantime the BMW Group has presented several hybrid vehicle
concepts, starting with a hybrid car in 1995 based on the BMW 518i.
In particular, the outstanding potential of this drive technology
has been proven in the BMW X5 EfficientDynamics presented in 2003
BMW Concept X3 EfficientDynamics shown to the world in 2005.
Introducing BMW Concept X6 ActiveHybrid, BMW is proudly presenting
the highest degree of maturity in hybrid technology seen so far.
Indeed, this technology offers everything it takes to combine
extremely efficient motoring with that Sheer Driving Pleasure so
typical of BMW.
A clear sign of the special status of the BMW ActiveHybrid concept
is the presentation of this technology in combination with a brand
of vehicle: BMW Concept X6 ActiveHybrid is the unusually attractive
of a truly innovative vehicle virtually predestined for such
cutting-edge drivetrain technology.
A thrilling team: BMW ActiveHybrid and the world’s first
Sports Activity Coupé.
BMW Concept X6 ActiveHybrid establishes a new benchmark right from
the start through the innovative combination of design and concept
Four doors and the smooth, dynamic coupé roofline interact with a
high window line and extra-muscular wheel arches ensuring permanent
presence and a perfect balance of the front and rear axle as a clear
At the front BMW Concept X6 ActiveHybrid is dominated by design
elements symbolising the vehicle’s dynamic orientation to the road,
while from the side the vehicle’s proportions are particularly
elegant and well-balanced. The
short front body overhang emphasises the dynamic character of the
car, the long overhang at the rear highlights the stretched and
of the vehicle.
Moved far to the back and with the roofline dropping down visibly
and continuously from the B-pillar, the greenhouse, together with
the high window line, ensures flat and low-slung window graphics.
The roofline flows down gently to the contour lip at the rear,
finally merging into a slight upward swing perfecting the coupé line
and at the same time optimising the car’s streamlining.
The rear look of BMW Concept X6 ActiveHybrid is split by horizontal
lines making the car look wider and emphasising its stable grip on
A muscular bumper and the protective cover for the underfloor are
further classic design elements characteristic of a BMW X Car. And
last but not least, the proportions so typical of a coupé are borne
out here in particular style typical of a BMW X Car, inter alia
through the muscular and elegant shoulders.
A typical BMW also in design.
BMW Concept X6 ActiveHybrid is clearly recognisable as a BMW from
every angle. All design features clearly bear out the language of
with the focus primarily on those sculptural lines so characteristic
BMW X models.
The front, side and rear body sections flow smoothly and directly
into one another, with additionally highlighting various design
elements typical of the brand ranging from the BMW kidney grille
through the dual round headlights with their cut contour and the
powerful contour line at the side all the way
to the horizontal lines at the rear.
Following the usual philosophy of a BMW X Car, the wheel arches show
slightly square contours offering space for 21-inch light-alloy
in Y-spoke design created especially for BMW Concept X6
This is indeed a brand-new rendition of such three-dimensional rims
with the individual spokes showing recessed surfaces not only at the
but also further down towards the inner sections of the wheel.
The exterior mirrors on BMW Concept X6 ActiveHybrid are likewise
brand-new in their design, a white, shimmering row of lights standing out
between the lower element finished in body colour and the upper
section of the mirror cap made of aluminium. Supplementing the
corona rings in the headlights
so typical of BMW, these additional lights also provide a daytime
The unique character of BMW Concept X6 ActiveHybrid is also borne
by the design of the rear lights where the L-shape so typical of a
BMW X Car is re-interpreted in a particularly dynamic, sweeping
motion. Extending far
into the side panels, the rear lights also serve to emphasise the
overall width of the car in its night design.
Front and rear: clear signals for efficient motoring.
BMW Concept X6 ActiveHybrid proudly presents its unmistakable design
also through truly authentic, unique features clearly visible at
very first sight. Hence, through its look alone this concept car
arouses the greatest expec-tations of the driving experience in such
a Sports Activity Coupé. It clearly underlines the robust character
and superior traction of a BMW X Car in combination with dynamic
driving qualities never seen before in this segment.
The unique character of this drivetrain concept is also expressed
the design of BMW Concept X6 ActiveHybrid: Not only the door cutout
strips with their blue, illuminated “BMW ActiveHybrid” marking and
the strongly contrasting colour scheme combining the paintwork with
the dark window graphics confirm the special status of this vehicle,
but also other, truly unique and innovative design features at the
back of the car.
As soon as the electric motors take over in full and provide all the
power required, a clear signal for optimised combustion and emission
ratings is proudly displayed at the back, since the underfloor
made of brushed aluminium both front and rear is a moving element on
BMW Concept X6 ActiveHybrid: So as soon as the vehicle is running
entirely on electric power, the rear protection panel may be moved
up to cover
the two tailpipes on the exhaust system as long as they are not
for their normal purpose.
The innovative philosophy of BMW Concept X6 ActiveHybrid clearly
proves that large and dynamic vehicles may also be driven
economically and with
a clear focus on the environment, at the same time reaching new
horizons in terms of driving pleasure and aesthetic design.
BMW Concept X6 ActiveHybrid thus offers not only a particularly high
standard of efficiency, but also enhanced driving dynamics, this
concept meeting the high standards of BMW EfficientDynamics in every
respect. Indeed, BMW Concept X6 ActiveHybrid ensures progress on all
levels –in terms of driving dynamics, in its all-round economy, and in
Sheer Driving Pleasure and the unique experience of particularly
efficient motoring therefore come out clearly at very first sight.