New BMW Z4 roadster sDrive35is a fully fit

Posted December 16, 2009 | Category: Cars

With its classic proportions and its modern sporting the new BMW Z4 has gained in a short time the top of its market segment. The charismatic roadster has opened a new dimension of driving dynamics. The new model variant BMW Z4 sDrive35is fascinated with enhanced again driving performance, resulting from both the six-cylinder engine in line with market modified BMW Twin Turbo technology and direct gasoline injection (High Precision Injection), as well as the automatic transmission in Sport seven-speed double clutch and the M Sports Package as standard with adaptive structure M. A series of interventions designed to increase the peak power optimization of the engine from 3.0 liters to 250 kW/340 hp. The maximum torque is 450 Nm, thanks to the overboost function, is elevated temporarily up to 500 Nm.

The impressive performance values ​​of the BMW Z4 sDrive35is is also reflected in a sharp increase of the elasticity that is perceived by the driver in various driving situations. In combination with the automatic transmission Sport seven-speed double-clutch, the new top model accelerates from 0 to 100 km / h in just 4.8 seconds. In the EU test cycle fuel consumption and CO2 emissions are respectively of 9.0 liters per 100 kilometers and 210 grams per kilometer, thus identical to the BMW Z4 sDrive35i Sport with automatic transmission. The world premiere of the new BMW Z4 sDrive35is is celebrated at the North American International Auto Show (NAIAS) in Detroit. Parallel to the launch of high-performance roadster in the spring of 2010, the M Sport package will be introduced on the market for all other variants of the BMW Z4.

Responsiveness, and a charming vivacity extremely frugal fuel consumption for this category of power characterizing the six-cylinder biturbo engine that gives the BMW Z4 sDrive35i impressive driving dynamics. In the new model roadster enormous potential made ​​available by the engine is used more intensively. The further improvement of the deployment of power that does not sacrifice the AC effi ciency is essentially the result of the improvement of supply of air and an increase in boost pressure.

The combination of the technique BMW TwinTurbo and High Precision Injection allow to reach values ​​of power in a naturally aspirated engine would be possible only through an increase in the number of cylinders and the cylinder capacity, therefore, only through a greater weight and a considerable increase in the consumption of fuel. The BMW Twin Turbo uses two small turbochargers instead of the low torque of inertia, the quail into action already relatively low speeds and cater each three cylinders with compressed air. The formation of power occurs with a rapidity unusual for a turbo engine. The supercharging system developed for the engine of the new Z4 sDrive35is works in all fields of load with a higher boost pressure. The high maximum torque of 450 Nm is already reached at an engine speed of 1,400 g / min and is available in no fi at 4,500 g / min. The engine develops its maximum power of 250 kW/340 hp at 5,800 g / min.

The engine management optimized the BMW Z4 sDrive35is includes the use of a function of overboost to raise temporarily the torque of 50 Nm at full load. The maximum value of 500 Nm allows to perform the accelerations particularly snappy. The BMW Z4 sDrive35is accelerates from 0 to 100 km / h in 4.8 seconds.

The engine characteristics are clearly perceive the orientation towards maximum power. The increase in power of the six cylinders optimized manifests itself in all load ranges, but is livable especially in highly dynamic driving situations. During acceleration of the BMW Z4 sDrive35is the driver registers an increase of elasticity, especially in areas of high and medium speed. The speed of the BMW Z4 sDrive35is is limited electronically to 250 km / h.

The enormous power of the BMW Z4 sDrive35is is available at any time, without negative impact on fuel consumption and emissions of the roadster. With an average fuel consumption of 9.0 liters per 100 kilometers and CO2 emissions of 210 grams per kilometer in the EU test cycle, the new top model has the same values ​​of the BMW Z4 sDrive35i Sport with automatic transmission.

The relationship between driving performance incredibly beneficial and consume fuel is due to the construction principle of the BMW six-cylinder with Twin Turbo technology and High Precision Injection. Although this engine demonstrates the advantages of direct injection of gasoline. Thanks to piezo injectors mounted centrally in the cylinder head between the valves, so in the immediate vicinity of the spark plug, make sure they are a particularly precise dosage of fuel and clean burning. The injectors which open outwards operate at a maximum pressure of injection of 200 bar and distribute the fuel in the combustion chamber following a wedge-shaped pattern. The direct injection also causes a cooling effect which in turn allows to achieve higher compression and optimization of the combustion efficiency.

In addition, the confi guration of the turbocharger helps to further reduce the fuel consumption. Given that the turbines

are constructed in a special high-strength steel which also supports the temperatures of over 1,000 degrees Centigrade, the cooling effect does not require a greater supply of fuel, so that especially at full load are made ​​of clear advantages in terms of consumption. A further contribution to reducing fuel and emissions is made ​​by measures of   BMW EfficientDynamics, such as Brake Energy Regeneration, Electric Power Steering EPS and control groups depending on the demand side.

The six-cylinder modified market has been subjected to a series of interventions that have further increased the resistance with respect to the base engine. Even the exhaust system of the BMW Z4 sDrive35is has been developed specifically for this model. A confi guration optimized in performance and produces a roaring sound charismatic. The BMW Z4 sDrive35is stands out with its own characteristic sound of the specifications generated by fins and interventions modifi cations made ​​to silencers. When prompted for a higher load, the driver and the passenger may rely on an acoustic feedback is not so annoying but still clearly audible. The job of tuning delivers an especially sound that accentuates the low frequencies.  

The peak values ​​at the level of driving dynamics and effi ciency of the BMW Z4 sDrive35is are also the result of Sport seven-speed automatic transmission with double clutch. The transmission is equipped with a dual-mass flywheel and strengthened by the resistance suitable for higher power that also supports a maximum torque of 500 Nm.

The seven-speed sports automatic transmission with double clutch performs the gear changes without interrupting the tractive force and allows the driver the choice between the change-gear automated and manual selection. The rapid passage and free from rips from a relationship to the other determines a progression incredibly linear and also contributes to reducing the values ​​of consume fuel and emissions.

The characteristic of Sport seven-speed automatic transmission with double clutch has been fitted to the engine power and thus supports the sporting character of BMW Z4 sDrive35is. Especially in the manual selection and in combination with the mode SPORT and SPORT + the Dynamic Driving Control are made ​​available to the features geared mainly to the dynamics, and these have been made ​​modifications Commission accompanied by the shift points, optimizing gear selection and further enhancing the couple. Furthermore, the automatic transmission includes a sport-Launch Control function that lets you accelerate from a standstill with maximum dynamics. The Sport automatic transmission is controlled with electronic gear selector integrated into the center console. The equipment also includes the paddles on the steering wheel.

Standard equipment also includes the BMW Z4 sDrive35is M Sport package with M aerodynamics package and spatial adaptive M with electronically controlled shock absorbers that increase agility without compromising ride comfort. The M Sport Package enhances the dynamic character of the car through the aerodynamically optimized exterior features and a custom interior. The sporty BMW Z4 sDrive35is is complemented by exclusive M alloy wheels 18-inch 5-spoke styling and tire waste. On request, there are also 19-inch alloy wheels.

The adaptive structure M is offered in combination with a lowering of the car by 10 millimeters; with pneumatic springs, with two pipe adjustment of both the extension phase and compression, are assured of fast reactions to abrupt movements of the steering wheel and the maximum precision in the guide cornering. The control unit which processes the data supplied by the acceleration sensors and controls the four dampers independently reacts at a speed flash to variations of the driving situation or the road surface. The adjustment of the degree of stiffness of the shock absorbers is via the external valves also used for circulating the oil. Depending on the driving situation, the shock absorbers are calibrated stiffer or softer. The reaction time of the system is minimal. At the moment when the front wheel passes over a hole is already adjusted the rear shock absorber.

The electromechanical steering of the BMW Z4 sDrive35is has developed a characteristic line for a particularly sporty driving. The electric power assist doses the action of giving priority to a clear feedback to the driver, so as to ensure the accuracy of cornering in all speed ranges.

The characteristics of the equipment exteriors and interiors of the M Sport package as standard supports the dynamic potential of BMW Z4 sDrive35is and also enhance the aesthetic level. Since the launch of the new top model of the M Sport package will be available as an option for other variants of the roadster. Unlike circles drawn specifically for the BMW Z4 sDrive35is, in other models of the equipment of the M Sports Package include M alloy wheels of 18 inches.

The exterior features of the BMW Z4 sDrive35is compounds also have a pronounced front bumper where the vents are

divided by horizontal rod. Similar to the BMW kidney grille slats, even the air vents are made ​​of Aluminium in color pastels. The line gently wrapped upon itself the rods echoes the design of the spokes of alloy rims. The rear bumper is also distinguished by the incisive frames of tailpipes and a diffuser bipartite, the upper section painted in body color and black in the lower section. The M Aerodynamics Package that is part of the M Sport Package, optional on other models in the roadster includes a rear bumper in Anthracite Metallic.  

Inside the BMW Z4 sDrive35is the driving experience is also intensified from cata M leather steering wheel complete with paddles, the M footrest and sports seats. The instrument cluster is decorated with a gray dial and tachometer with "sDrive35is". In addition, the BMW Z4 sDrive35is has a BMW Individual headliner anthracite sill of M, the running boards with colored piping with "sDrive35is" and an interior trim in Aluminium carbon version. The M Sport package of the other models in the roadsters with manual transmission includes an M leather shift knob. With the launch of the BMW Z4 sDrive35is the offer of composition leather is expanded by a new color variant. For the top model and all other variants of the roadster will be available to run in Kansas Walnuss skin.

For the BMW Z4 sDrive35is are scheduled six exterior paint. Besides Alpinweiß and metallic colors Titanium Silver, Saphierschwarz, Space Grey and Tiefseeblau is offered for the first time also for the roadster variant Melbourne Red metallic. Regardless of the selected paint, exterior mirror caps day of the BMW Z4 sDrive35is are always kept in plain Oxidsilber. Another design feature of the top model has the word "sDrive35is" in the front section of the sides.  

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