(from BMW press release)
BMW M3 SEDAN
BMW Top Athlete with Individual Character:
The new BMW M3 Coupé offers unique power and performance combined
with equally outstanding driving dynamics, almost unlimited muscle from the
newly developed V8 power unit, and striking looks based on the athletic body
of the BMW 3 Series Coupé already the winner of many prizes and awards.
Clearly, therefore, the supremacy offered by BMW M’s new high-performance
sports car both on the track and in everyday traffic leaves nothing to be
desired. But one space still remains in the first row for another top athlete:
the BMW M3 Saloon.
So complementing the sporting and elegant Coupé, BMW M GmbH is now
introducing the four-door version of the BMW M3 boasting the same drive
technology and also developed as a new car from the ground up – another
outstanding model featuring all the highlights typical of a BMW M Car but
nevertheless conceived as a unique product personality.
The BMW M3 Saloon is a high-performance car which, in its design and
functions, sets new standards while remaining first and foremost a BMW M3
in its character – a car developed and built with the mission to convey the
most demanding motorsport technology to everyday traffic, offering unique
Sheer Driving Pleasure in the process.
Thirteen years after the introduction of the first BMW M3 Saloon, the Coupé
is now once again being joined by a four-door “brother” – a version particularly
appealing to those fans of high-performance sports cars who attach great
significance to everyday driving qualities and practical value.
Indeed, all models from BMW M GmbH are characterised by the close
connection between vast experience in motorsport and unique driving
pleasure on the road. Their superior driving dynamics is based on drivetrain
and suspension technology developed with all the know-how of motorsport,
offering qualities the driver and his passengers will enjoy on every trip.
The fascination created in this way is provided throughout a wide range of
vehicle segments and body versions, as is clearly proven, for example,
by the success of the BMW M5 Saloon.
Now the BMW M3 Saloon likewise offers grand touring comfort for up to five
occupants, with the rear doors facilitating access to the rear seats. So starting
todaythe driver particularly committedto the well-being of his passengers
likewise has every reason to choose the outstanding sportiness of a BMW M3.
The BMW M3 Saloon owes its supreme driving dynamics to the new eight-
cylinder power unit which, through its high engine speed concept alone, offers
all the DNA of the current BMW Sauber F1 power unit.
Applying this principle characteristic of BMW M engines, the V8,
with its capacity of 3,999 cubic centimetres, develops maximum output of
309 kW/420 hp.
Maximum torque of 400 Newton-metres/295 lb-ft is equally impressive,
as is the maximum engine speed of 8,400 rpm.
Perhaps the most outstanding and, indeed, unique forte of the new model is
the tremendous thrust and power going to the rear wheels of the
BMW M3 Saloon via the Variable M Differential Lock: The new BMW M3 Saloon
offers not only breathtaking acceleration, but also huge, ongoing muscle
in the process of developing truly outstanding performance. Acceleration to
100 km/h comes in just 4.9 seconds and continues with the same
dynamism all the way to 250 km/h or 155 mph, where electronic engine
control sets an artificial limit to the speed the car is able to achieve.
Also on the four-door model: know-how from motorsport forms
the foundation, uniqueness is the principle.
Within the model range of BMW M GmbH, the BMW M3 has always been the
model most directly related to motorsport through its DNA alone. This, indeed,
applied right from the start to the first edition of the BMW M3 launched in
1986, then continuing through the two subsequent model generations and
now being expressed just as clearly in the 2007 version of the BMW M3.
So in any direct comparison of thoroughbred sports cars of the most classic
style, the BMW M3 is always one of the top contenders for pole position.
While the latest generation of the four-door BMW M3 was based in its process
of development on the BMW 3 Series Saloon, this new model differs
fundamentally from the “regular” Saloon in terms of both looks and technical
features. Apart from unique design and drivetrain/chassis technology
configured for precise performance of the highest calibre, lightweight
engineering came right at the top for the engineers at BMW M in creating their
new car. Indeed, implementing the development concept of intelligent
lightweight technology consistently right from the start, the specialists at BMW M
have reduced the car’s power-to-weight ratio to just 3.8 kilos/horsepower.
Apart from the load-bearing structure of the car, only the doors, the roof, the
luggage compartment lid, the windows and the rear lights come from the body
of the “regular” BMW 3 Series Saloon. In other words, the number of body
parts developed brand-new from the ground up is virtually as large as on the
BMW M3 Coupé, which incidentally shares the striking and highly distinctive
front section with the Saloon in its unique look.
The Saloon is also recognisable as a BMW M3 at very first sight, characterised
not only by the engine compartment lid with its striking powerdome and the
two openings to the side, but also by the newly designed, function-oriented
look of the front and rear air dams, the so-called “gills” in the front side panels
also tailored to the Saloon, the side-sills, the rear-view mirrors, and the light-
alloy rims in typical BMW M design.
The exterior is both athletic and aesthetic in its appearance, again highlighting
the sporting qualities of the car. And last but not least, the wide range of
body colours gives each and every customer unique freedom of choice, with
the new M3 Saloon available not only in four paintwork options exclusive to
BMW M, but also many others colours and different shades.
The interior: maximum driving pleasure for five.
The interior also serves to offer the occupants maximum driving pleasure in a
beautiful ambience tailored to their specific taste and preferences. This applies
above all to the driver, benefiting from all the instruments and controls laid out
directly for an active style of motoring and enjoying the supreme performance
of the new BMW M3 Saloon.
The cockpit of the new M3 Saloon is characterised by the double dial
instruments typical of BMW M with their white illumination and red indicator
needles, the M leather steering wheel and the newly designed centre console.
The door cutout trim strips proudly bearing the BMW M3 logo both front
and rear, the support for the driver’s left foot, the special colour scheme inside
the doors, as well as trim bars exclusive to BMW M made of high-quality
materials such as leather in carbon structure or aluminium, all underline the
unique character of the new BMW M3 Saloon.
Like in the Coupé, the driver and front passenger enjoy all the amenities of
sports seats adjustable to a wide range of different settings and offering
superior side support. The rear seat bench, in turn, able to accommodate up
to three passengers, comes in the same surface contours as the rear seats
in the BMW 3 Series Saloon, but with the seam pattern and special leather
characteristic of BMW M Cars.
The BMW M3 featuring an eight-cylinder power unit for the first time.
After 15 years the straight-six power unit in the two preceding model
generations of the BMW M3 lauded several times as the Engine of the Year,
has now given way to an even more superior successor, the two model
variants of the new BMW M3 featuring an eight-cylinder for the first time.
Through its specifications alone, this brand-new high-performance power unit
offers clear proof of the outstanding skills of the engine specialists at
BMW M GmbH gained also in motorsport. Displacing 3,999 cc, the new
V8 develops maximum output of 309 kW/420 hp and peak torque of
400 Newton-metres/295 lb-ft at an engine speed of 3,900 rpm. Perhaps an
even more impressive point is that some 85 per cent of this maximum
torque is available consistently all the way throughout the huge speed range
of 6,500 rpm.
The most striking highlight of the eight-cylinder is certainly the high-speed
engine concept again so typical of BMW M: With the engine revving up all the
way to 8,400 rpm, it obviously offers immense power and torque at all speeds.
This power is fed to the rear wheels by a six-speed manual gearbox as
well as brand-new final drive, a combination offering a standard of acceleration
quite comparable in its spontaneity and endurance to the dynamic potential
of a fully-fledged racing car.
Apart from specific output of 105 hp per litre, average fuel consumption
determined in the EU test cycle of just 12.4 litres/100 km, equal to 22.8 mpg
imp, clearly expresses the supreme engineering skills of the engine
development specialists at BMW M GmbH. Indeed, this kind of economy
confirms the remarkable efficiency of the new BMW M3 Saloon in the world of
high-performance sports cars, particularly when also considering the space
available in the car.
The V8 power unit featured in the new BMW M3 is a genuine lightweight
weighing only 202 kg or 445 lb. In fact, it is even some 15 kg or 33 lb lighter
than the six-cylinder in the former model.
Production of components with know-how from Formula 1.
The engine block of the new eight-cylinder comes from BMW’s light-alloy
foundry in Landshut, which also makes the engine block for the BMW Sauber F1
racing cars. The crankcase is made of a special aluminium-silicon alloy,
eliminating the need for conventional cylinder liners. Instead, the appropriate
cylinder surface is provided by releasing and exposing the hard silicon
crystals, the iron-coated pistons running directly in the honed cylinder bores
without any additional surface coating.
High engine speeds and high combustion pressure obviously cause extreme
loads acting on the crankcase, which is therefore particularly compact
and torsionally rigid in its bedplate design, ensuring very precise and smooth
balance of the crankshaft. A further point is that the forged crankshaft is very
stiff and highly resistant to both flexural and torsional forces, but nevertheless
weighs only about 20 kg or 44 lb.