(from AC Schnitzer Press Release)
Now that the Z4 Roadster has undergone a facelift and at the same
time the M-variant, the Z4 M Roadster, was launched, the model range
has been completed with a new Z4 Coupé and MCoupé. Not only BMW but
also we at AC Schnitzer are thrilled with the range of new Z4
vehicles, and present our interpretations: the AC Schnitzer ACS4
Roadster and the AC Schnitzer ACS4 Coupé.
The product range extends from suspension components and exhaust
systems, through a wide range of wheel and tyre combinations, to
special aerodynamic conversions and last but not least interior
The aerodynamic range
has been designed so that - with few exceptions - the special
accessories for the ACS4 Roadster will also fit the ACS4 Coupé, and
similarly the conversions for the ACS4 M Roadster are compatible
with the ACS4 M Coupé.
To improve the driving dynamics, for the Z4 M Roadster and M Coupé
we offer a modified rear axle ratio of3.91 : 1 (standard 3.62 : 1).
The AC Schnitzer rear axle ratio guarantees greatly improved
The response behaviour is improved on all Z4 models thanks to the AC
Schnitzer sports rear silencers. Made completely of special steel
with chromed Racing tailpipe, they also provide a more sonorous note
than the standard system. For purely visual enhancement, on the Z4
Roadster and Coupé chromed tailpipe trims are available in the same
For the M-versions of the Z4 that are fitted with a twin sports
silencer as standard, as well as the Twin Racing system there is a
further option of Sports Trim Design. This design is reserved
exclusively for M-vehicles and was previously seen on both the M5
Faster and more precise gear shifts promote the adrenalin rush and
perceptibly improve acceleration in a car. So the AC Schnitzer Short
Shift has been adapted for the BMW Z4 3.0i, 3.0si and M-versions
with manual transmission.
For safe control at all times of the driving performance of the new
BMW Z4 models, except M variants, a special high performance brake
system has been developed for the front. The internally vented and
slotted brake discs measure 334 mm in diameter and are 32 mm thick.
The special brake calipers are fitted with two 42 mm pistons.
Naturally the standard ABS system is retained in full.
Extensive tests on race tracks and public roads have resulted in the
development of a complete suspension concept consisting of AC
Schnitzer sports suspension, special antiroll bar kit and strut
braces. The total concept, the components of which can also be
fitted individually, achieves sports handling with the same high
standard of driving comfort.
In addition, exclusive to the M Roadster and M Coupé is a special
racing suspension which is currently still in the development phase.
The suspension concept for all ACS4 Roadster and Coupé models
naturally also includes the AC Schnitzer Type IV, Type III and Type
II alloy and racing rims in one-piece and multipiece construction.
As well as a wealth of wheel and tyre combinations in 17", 18" and
19", we can now offer the largest wheels for the Z4 Roadster and
Coupé in 9.0J x 20" with tyres 245/30 R 20. The M Roadster and M
Coupé are even fitted with 9.0J x 20" and 245/30 R 20 on the front
and 10.0J x 20" with 285/25 R 20 on the rear. For tyres, we
recommend high performance tyres from Continental and Michelin.
The bodywork of the AC Schnitzer ACS4 models reveals the high
technical standards that we apply to our products. So for the Z4
Roadster and Coupé and for the M Roadster and M Coupé there are two
tailored outfits that fulfil these attributes.
The front part of the Z4 Roadster and Coupé is enhanced by the
strikingly designed front spoiler attached to the standard front
skirt. This also ensures better downforce. The rear is rounded off
by the new AC Schnitzer rear skirt which not only harmoniously
integrates the sports rear silencer into the rear but at the same
time gives the vehicle a more imposing appearance.
It is in the nature of things that there are a few fundamental
differences between the Roadster and Coupé: for the Roadster the
product range includes a chrome cover for the roll bars, a wind
deflector in clear-glass style and a two-piece rear wing, the
triangular parts of which are attached individually to the right and
left of the Roadster boot - setting totally new accents.
Whatever the body version, the AC Schnitzer side skirts form the
homogeneous link between the front and rear. A particular
eyecatcher is the side deflectors with integrated flashers, which as
an option can be supplemented with a Chromeline set.
Exclusivity is the trump card in the cockpits of all AC Schnitzer
ACS4 models: As well as the carbon interior trim in silver, and
matching ergonomically designed AC Schnitzer airbag sports steering
wheels, the accents are set above all by the aluminium accessories
in silver or black anodized finish. There is also a pedal set with
matching foot rest, a handbrake handle and a selector knob for the
manual versions. For automatics, there is a carbon selector lever.
Last but not least, foot mats with the AC Schnitzer logo, made from
high quality velours, complete the range.
Naturally all AC Schnitzer parts are TÜV-tested.