BMW M division has applied its latest improvement in the performance of the Club Sport treatment of the fifth-generation M3, with the introduction of the limited edition M3 CS.
The new performance saloon is powered by a 454bhp twin-turbo 3.0-litre in-line six and follows the M4 in CS, with which it shares much of its mechanical package. The M3 CS will be available for order in the UK in January 2018; shipments will be payable after a scheduled start of production in March.
Construction on the developments used on the M3 Competition Package, the M3 CS adopts a number of lightweight body components, in line with the approach adopted for the M4 in CS. These include the carbon-fibre reinforced plastic roof and bonnet. The new roof is claimed to save 6kg on the steel structure of the standard M3.
More lightweight components include a front splitter made of carbon fiber, an elevator (lift),-the reduction of start-up-deck-mounted Gurney spoiler and a large diffuser.
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Inside, the M3 CS acquires the lightness of the M sport seats and sport steering wheel of the M3 Competition Package. Borrowing a cue from the new M5, there is also a new red start button.
In spite of the focus on the performance, features such as BMW Professional, navigation system, climate control air conditioning, and a Harman Kardon sound system are mounted in series, and the rear seats are retained. However, the buyer can specify the new four-door with a unique set of Alcantara and leather accents as an option.
All in all, the BMW M claims a reduction of 10 kg over the standard M3 at 1585kg. Although this is not a significant loss, insiders suggest the M3 CS of the centre of gravity is lower than that of the already heavily focused M3 Competition Package.
The power of the M3 CS has the same evolution of the BMW M twin-turbo 3.0-litre six-cylinder in-line gasoline engine unveiled in the M4 in CS. With 454bhp at 6250rpm and 443lb ft of torque from 4000rpm-5380rpm, the longitudinally mounted unit develops 29bhp and 37lb ft more than the engine used by the standard M3. It also has packs of 10bhp and 37lb ft more than the earlier evolution of the engine developed for the M3 Competition Package.
This gives the M3 CS, with a power to weight ratio of 286bhp per tonne – some 20bhp per tonne more than the standard M3 and 8bhp per ton more than the M3 Competition Package, according to BMW figures.
The power is channelled through a standard seven-speed dual-clutch gearbox and electronically controlled M differential to the rear wheels.
BMW quotes a 0-62mph time of 3.9 sec, making the M3 CS is the fastest-accelerating road M3 model yet. By comparison, the standard M3 has an official 0-62mph time of 4.1 sec and the M3 Competition Package takes 4.0 sec.
The top speed of the M3 CS is the same as that of the M3 Competition Package to 174mph.
With the increase in power and torque, the new engine also gets a reworked sports exhaust system featured as BMW M described as a CS-specific exhaust.
The M3 CS hiking specially tuned version of the M3 Competition Package suspension. It is combined with the standard 19in front wheels shod with 265/35 Michelin Pilot Sport Cup 2 tires and 20in rear wheels with 285/30 rubber.
In line with the M3 Competition Package, the M3 CS also employs BMW M compound brake package, which features four-pot calipers at the front and two-pot calipers at the rear.
The Production of the M3 CS will be held at BMW plant Regensburg in Germany and will be limited to 1200 units.
The car will be at the price of Â£86,380 in the united KINGDOM, around 30 000 pounds more than the M3 Competition Package. The united KINGDOM driving on the right side of the assignment to the M3 CS will be limited to less than 100 cars.
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