BMW’s tuner will present two models at the upcoming ESSEN Motor Show in Germany. The ACS4 Roadster & Coupe are based on the recently facelifted Z4 Roadster and it’s new Coupe, including the M editions.The Essen Motorshow is Germany’s version of SEMA, and these days it rivals the Las Vegas show.
Based on the Z4, the ACS4 features new suspension components and exhaust systems, a new range of wheel and tyre combinations, special aerodynamic conversions and interior accessories.To improve the driving dynamics they offer a modified rear axle ratio of 3.91 : 1 . This rear axle ratio guarantees greatly improved acceleration.
Thanks to the sports rear silencers the response behaviour is improved.They are made of special steel with chromed Racing tailpipes, and they also provide a more sonorous note than the standard system.There is also a Sports Trim Design -option for the M-versions of the Z4 that are fitted with a twin sports silencer as standard, as well as the Twin Racing system. This design is reserved exclusively for M-vehicles.A Short Shift has been adapted for the M-versions with manual transmission.Faster and more precise gear shifts promote the adrenalin rush and perceptibly improve acceleration in a car.
New sport-suspension was developed after many tests in race tracks and public roads.Ac Schnitzer provides the kit that containing special antiroll bar kit and strut braces.Special racing suspension will be developed exclusive for the M Coupe and M Roadster.
The suspension concept also includes the Type IV and, Type III alloy and racing rims. 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.
An aerodynamic package has been created which sets even more sporting accents. The package consists of carbon front spoiler elements that optionally can be joined to the front spoiler with chromed aluminium supports. In addition, the new chrome front grille gives the vehicles a trendy retro look and at the same time meets the high air flow demand of the 3.2 litre high revving engine.
On the rear the car is enhanced with a fully integrated carbon rear diffuser, available with two different versions of the special rear skirt edge frame which, depending on which exhaust is fitted.
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. For the coupé versions, a three-piece rear wing is available.
The 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 models: As well as the carbon interior trim in silver, and matching ergonomically designed airbag sports steering wheels, the accents are set above all by the aluminium accessories in silver or black anodized finish. The interior accesories include a pedal set with matching foot rest, a handbrake handle, a selector knob for the manual versions, and foot mats with the AC Schnitzer logo, made from high quality velours