Chassis I Lightweight construction
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The entire roof of the BMW M3 Coupé
is constructed from carbon (carbon
⇒
bre-reinforced material), a material
that is light as well as very stiff.
Consistent lightweight construction with
the intelligent use of speci⇒c materials: track
control arms and dampers on the rear axle
are made from aluminium, a weight-saving
measure just like the lightweight load-through
in the BMW M3 Coupé. The rear bumper
carrier is made of composite material (long
The front bumper carriers made from
composite material and the double-joint
spring strut front axle constructed from
aluminium are as important to the overall
lightweight concept as the aluminium
bonnet.
⇒
bre thermoplastic). The perforated
compound brake discs also contribute
towards a reduction in weight.
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Like all other M cars, the BMW M3 models
were developed independently by BMW M
GmbH. They adhere consistently to the
principles of the M philosophy: cutting-edge
motorsports technology and absolute everyday
practicality are fused into a fascinating whole.
bumpers, in the front air dam, the bonnet,
the side panels on the front body and the
drivetrain – adding even more punch to the
vehicle’s power-to-weight ratio.
performance. Electronic Damper Control
(EDC) switches the lightweight engine’s
damper behaviour between three modes:
Comfort, Normal or Sport – meaning you
can experience familiar roads as new every
time. Perfect acceleration is ensured by a
variable M differential lock, so even when
you’re taking a sharp bend or driving on
unpredictable road surfaces, traction
remains high while almost none of the
engine’s drive power is wasted.
The lower a vehicle’s mass, the better its
driving dynamics. We reduced the weight
of the BMW M3 in areas where it would have
a positive effect on driving characteristics.
The intelligent lightweight construction
in the newly-developed suspension, the
perforated compound brake discs, the
aluminium bonnet and the synthetic front
side walls all contribute consistently to this
vehicle’s lower weight. In the roof of the
BMW M3 Coupé, carbon ⇒bre-reinforced
plastic has also been used, a particularly light
and extremely rigid high-tech material. The
result is a signi⇒cantly lower centre of gravity
and better roadholding. M-speci⇒c high
agility is ensured not only by the reduction
in weight, but also by the concentration of
weight as close as possible to the vehicle’s
centre of gravity. Bene⇒ting from an ideal
weight ratio of close to 50 :50 divided over
both axles, the driver of this vehicle gets
an instant impression of the advantages
of intelligent lightweight construction:
powerful drive, high-revving bends and
shorter braking distances.
Something that can’t be seen, but felt: the
double-joint spring strut front axle is⇒rmly
secured to the body by an aluminium
stiffening plate. This, together with other
strengtheners including a front strut brace,
improves steering precision and driving
stability no end. So the vehicle stays
manageable, even when it’s brought right
up to the limits of driving dynamics. This
all helps squeeze out every last drop of
We even developed an entirely new
suspension, perfecting its road contact. Every
component – except for the lower trailing link
on the rear axle, taken straight from the BMW
3
Series Coupé – has been redeveloped from
scratch to meet stringent motorsport standards.
The intelligent lightweight construction is also
evident in the aerodynamically optimised
| Categories | BMW 3-Series Manuals, BMW Manuals |
|---|---|
| Tags | BMW E90, BMW E92, BMW E93 |
| Model Year | 2011 |
| Download File |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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