BMW Z4

Post by: Automotive

Range-topping Z4 sDrive35is model makes world premiere at NAIAS. Combining classic proportions with modern features, the BMW Z4 Roadster enjoys the top spot in its market segment. Now, the new BMW Z4 sDrive35is distills the Roadster’s performance potential to produce one of BMW’s fastest and best-handling Roadsters ever. The BMW Z4 sDrive35is is making its world debut as a 2011 model at the 2010 North American International Auto Show (NAIAS) in Detroit. It arrives at authorized BMW Centers in Spring 2010.

More air, boost, and torque: More BMW performance.

The latest Z4 model is characterized by instantaneous response to the accelerator pedal, fantastic sounds, and a free-revving spirit. The engine features increased air intake flow and increased boost pressure to release more power with the same standard of efficiency. The combination of twin low-mass turbochargers and High Precision direct injection offers an output a naturally-aspirated engine would only be able to provide through more cylinders and larger displacement.

The turbocharger system developed for the engine of the new BMW Z4 sDrive35is maintains a high output throughout the entire engine speed range. Nominal peak torque is increased to 332 lb-ft from 1,500 rpm to 4,500 rpm. Maximum output of 335 hp is delivered at 5,900 rpm.

Overboost function for athletic acceleration.

The enhanced engine management system of the BMW Z4 sDrive35is includes an electronically-controlled overboost function to briefly increase torque under full load by another 37 lb-ft. This temporary torque peak of 369 lb-ft gives the car a significant increase in acceleration. The BMW Z4 sDrive35is will complete the sprint from a standstill to 60 mph in just 4.7 seconds (preliminary). Top speed of the BMW Z4 sDrive35is is limited electronically to 250 km/h or 155 mph.

High Precision direct injection and BMW EfficientDynamics.

The BMW Z4 sDrive35is offers outstanding power and performance without an increase in fuel consumption or emissions. Its figures are expected to match those of the BMW Z4 sDrive35i with Double-Clutch Transmission on the EPA test cycle. This balance of performance and fuel efficiency results from the fundamental design and layout of the BMW inline-6, which combines twin turbochargers with High Precision direct injection. The fuel injectors operate at a pressure of up to 200 bar (2900 psi), distributing fuel in a conical spray pattern throughout the combustion chamber. Another advantage of direct fuel injection is its cooling effect which allows higher compression while reducing the possibility of detonation.

Further technologies offered under the BMW EfficientDynamics philosophy include Brake Energy Regeneration, Electric Power Steering, and on-demand operation of engine accessory units.

Signature engine sound to accompany the surge of power.

The exhaust system of the BMW Z4 sDrive35is has been tuned specifically for this model. Acoustic engineering gives the car a very unique sound pattern across the speed range. This tuned sound is the result of special baffles and a unique set of mufflers. The sound is characterized by a deep rumble with a focus on the low frequency sound range.

Enhanced Electric Power Steering.

Electric Power Steering (EPS) on the BMW Z4 sDrive35is features very sporty programming, focused to provide intense and clear steering feedback to the driver. This enables the driver to turn-in with remarkable precision and confidence at all vehicle speeds.

7-speed Double-Clutch Transmission with special programming.

The standard 7-speed Double-Clutch Transmission (DCT) in the BMW Z4 sDrive35is combines the best in driving dynamics and efficiency. A highlight is the dual-mass flywheel, configured for the higher levels of power and performance. The DCT can shift gears without the slightest interruption of power to the rear tires, and offers a choice of automatic or manual gear selection. The programming of the DCT has been tailored to complement the sporty nature of the BMW Z4 sDrive35is at every level.

When shifting gears manually or within the SPORT and SPORT+ modes of the Z4’s standard Driving Dynamics Control, the transmission offers an exciting experience through faster gearshifts and a greater increase in torque before shifting. The DCT also features a Launch Control function for maximum performance when accelerating from a standstill. The DCT is controlled by an electronic gear selector on the center console and comes with gearshift paddles on the steering wheel.

M Sport upgrades to match the new engine’s performance.

The BMW Z4 sDrive35is includes new M Sport upgrades such as M Aerodynamics and adaptive M Suspension. The adaptive M Suspension combines a ride-height reduction of 10 millimeters (almost 0.4”) with electronically controlled shock absorbers (Dynamic Damping Control) to improve the vehicle’s agility without compromising ride comfort. The M Sport upgrades

emphasize the Z4’s athletic character through aerodynamically optimized exterior features and customized interior components.

Special 18-inch light-alloy wheels in five-spoke design round off the sporty character of the Z4 sDrive35is. 19-inch light-alloy wheels are available as an option. In addition to its unique wheels, the new model is further distinguished by a striking front bumper with a matte aluminum trim bar in each outer air intake, a rear bumper with accentuated surrounds on the tailpipes, and a rear diffuser finished at top in body color and black textured surface underneath.

M Sport interior enhancements and new Kansas Walnut leather.

Inside the BMW Z4 sDrive35is, the driving experience is enhanced by features such as a new thick-rimmed M leather steering wheel with gearshift paddles, an M driver’s footrest, and sport seats. Grey-faced instrument dials feature the “sDrive35is” model designation. Further features inside the Z4 sDrive35is are the Anthracite-colored BMW Individual roof lining, M door sill strips, floor mats with colored piping and the “sDrive35is” model designation, as well as M interior trim in Aluminum Carbon. The new Aluminum Carbon trim features the recognizable “weave” of natural carbon fiber interpreted on a matte aluminum base.

The range of leather upholstery is being further enhanced by an additional color variant marking the launch of the BMW Z4 sDrive35is: All versions of the Z4 Roadster are now also available in Kansas Walnut leather as an option. The BMW Z4 sDrive35is is available with a choice of six paintwork colors. In addition to Alpine White and the metallic colors Titanium Silver, Black Sapphire, Space Grey, and Deep Sea Blue, the Z4 Roadster is now available for the first time in Melbourne Red metallic. Regardless of the color chosen, the exterior mirror caps on the BMW Z4 sDrive35is are always Oxide Silver.

source : BMW Press

BMW Z4

Post by: Automotive

Mazda 3 Mazdaspeed

Post by: Automotive

It's an unwritten law of nature. When two parents have kids, more often than not, their offspring will be quite different. One will have Dad's eyes, another, Mom's nose. Some will be mild-mannered, happy and always smiling, and others, well - they will be wicked. Enter the all-new 2010 MAZDASPEED3. From a distance, it may look like its MAZDA3 siblings, with its five-point grille and sleek lines, but one minute behind the wheel will prove otherwise.

For 2010, the MAZDASPEED3 blends the five-door functionality of the all-new MAZDA3 5-Door with bolder, more aggressive styling and exhilarating performance to meet the needs of driving enthusiasts with active lifestyles. Carrying forward the award-winning MZR 2.3-liter DISI Turbo engine, the new MAZDASPEED3 builds on the legendary performance of the original while adding a fresh new look and even better handling.

Expressive and Dynamic Design

The design of the all-new MAZDASPEED3 evolves the model's visual identity to create a sportier, more aggressive appearance. The result is a more emotional design that takes the sporty, agile nature of the all-new MAZDA3 5-Door to a new level.

The MAZDASPEED3 is easily distinguished from its siblings. Start at the front, where a lower air dam and round fog lights frame an organic, metallic-black grille. The hood now houses an intercooler scoop to improve charge air cooling, and the front fenders are flared to contain the car's wider tires.

From the side view, the new 18 x 7.5-inch aluminum wheel design is unique, but modeled closely on the deeply sculpted, expressive, and very lightweight 19-inch forged wheels on the RX-8 R3. Sculpted side skirts and a lower stance also give away the MAZDASPEED3's sinister motives. From the rear, larger dual exhaust tips, a rear valance painted the same metallic black as the grille, and a larger, roof-mounted rear wing give it away.

Nagare-inspired design defines the exterior and continues into the cabin, which features color coordination and materials chosen to excite the driver and passengers every time they take a seat. Black is the keynote color employed throughout the interior, while the seats and trim fabric have an organic red graphic design. This MAZDASPEED3-exclusive design is distributed throughout, with red stitching enhancing the sporty interior character on the steering wheel, seats, door trim, shift lever boot, and center armrest.

The dashboard of the new MAZDASPEED3 is designed to give a roomy feel while displaying critical information up high and deep into the dashboard, closer to the driver's field of vision and focal point. The instrument cluster for the all-new MAZDASPEED3 also includes a new LED turbo boost gauge positioned between the meters.

The driver's seat is especially critical in any performance car. Without solid lateral support, a driver loses the focus, control and precision needed to really enjoy driving. The all-new MAZDASPEED3 seats are designed to provide that support without compromising everyday comfort.

Exhilarating Performance

The all-new MAZDASPEED3 continues to use Mazda's award-winning MZR 2.3L DISI Turbo powerplant. Delivering 263 horsepower at 5,500 rpm and 280 lb.-ft of torque at 3,000 rpm, it made the original MAZDASPEED3 the most powerful front-drive performance car under $25,000, and remains one of the strongest engines in its class today.

With no need to increase power, the development team focused on harnessing that power more effectively. Engine output itself is more consistent, thanks to the hood-mounted intercooler scoop that not only improves intercooler airflow over the grille-mounted intercooler duct of last-year's car, but also frees up grille space for a fresh-air duct to feed the engine's intake. Breathing cooler air improves efficiency, boosting both real-world power and fuel economy.

The gear ratios in the compact, three-shaft gearbox have also been revised, with 2nd through 5th gear all getting slightly taller to make better use of the engine's abundant torque. The new gear spacing and refined engine calibration are focused on providing more linear, seamless power delivery. The advanced torque management system, which minimizes torque steer by adjusting torque output based on gear position and steering angle, has also been recalibrated. The new gear ratios allow more of the engine's torque to be utilized in the lower gears while still keeping torque steer at a manageable level.

Handles Like a Mazda

The new MAZDASPEED3's body shell benefits from a focused effort at strengthening the most important parts of the structure. The use of high-strength and ultra-high strength steel in the safety structures like bumpers and side impact beams has nearly doubled, making these areas both stronger and lighter. The suspension mounting points all gain rigidity from the use of thicker sheet metal in high-stress areas and extensive use of weld bonding, a hybrid joining technique combining conventional spot welds with structural adhesives. Torsional stiffness around the rear suspension mounts is improved roughly two percent, while deflection around the rear liftgate is reduced nearly 40 percent.

In general, a stiffer structure allows firmer suspension tuning without compromising ride comfort. In the case of the new MAZDASPEED3, that firmer suspension was accomplished with stiffer springs, higher damping rates, and revised mounting points for the front stabilizer bar that reduce bushing deflection and increase the bar's effectiveness. Combined with wider, higher-grip 225/40R18 Dunlop SP Sport 2050 performance tires, the MAZDASPEED3's new suspension tuning marries unflappable control with a comfortable everyday ride.

Steering feel and response have been improved through more rigid 3-point mounting of the steering rack, compared to the previous 2-point system. The hydraulic power steering pump has also been removed from the engine and is now driven by an electric motor. This electro-hydraulic power assisted steering (EHPAS) reduces parasitic drag on the engine, lowers power steering fluid temperature, and gives much more flexibility for the development team to dial in steering feel. Rigid high-speed steering feel can now be accomplished without suffering heavy steering at low speeds

Brake feel in hard braking has been improved through the upgrade of the brake assist from mechanical to a new electronically-controlled system. Brake assist shortens stopping distance in panic-stop situations by applying full brake pressure during the moment of hesitation that most drivers exhibit in the instant after first hitting the brakes. The new electronically-controlled system is better at differentiating between true panic-stop situations and, for example, braking hard for turn 11 at Mazda Raceway Laguna Seca.

Features and Options - Everything You Want, Nothing You Don't Need

The 2010 MAZDASPEED3 is loaded with all the goodies a driving enthusiast wants, but without anything that would add undue weight. Standard features and equipment include variable intermittent windshield wipers, roof-mounted aerodynamic antenna, illuminated vanity mirrors, electroluminescent gauges, aluminum pedals, MAZDASPEED -branded black/red cloth seats, door trim, interior trim, floor mats, scuff plates and black/red decoration panel; and dual-zone climate control. An available MAZDASPEED3 Tech Package offers advanced keyless entry, push-button start, a compact full-color navigation system, Sirius satellite radio with six months of free service, a perimeter alarm, six CD changer, and BOSE® Centerpoint® surround sound - a five-channel surround system engineered cooperatively with BOSE® that enhances the listening experience thanks to a digital amplifier, noise cancellation technology and 10, strategically placed, premium speakers. Because the weight and structural penalties would compromise the pure driving experience, the MAZDASPEED3 is not available with a moonroof option.

The MAZDASPEED3 is the third model in the 2010 MAZDA3 lineup, joining the MAZDA3 5-door, which made its North American debut at the North American International Auto Show earlier this year, and the 4-door sedan, which made its world debut at the Los Angeles Auto Show last November.

Headquartered in Irvine, Calif., Mazda North American Operations oversees the sales, marketing, parts and customer service support of Mazda vehicles in the United States, Canada, Mexico and Puerto Rico through more than 850 dealers. Operations in Canada are managed by Mazda Canada, Inc., located in Ontario, Canada, and in Mexico by Mazda Motor de Mexico in Mexico City.

2010 MAZDASPEED3 AT A GLANCE:

Exterior

Design based on the all-new MAZDA3 5-Door, evolved for a sportier, more aggressive appearance

New air intake to optimize intercooler efficiency

Front fender and front bumper designs exclusive to MAZDASPEED

The front grille and lower bumper sections share the same black metallic paint finish

Wedge-shaped, curving character lines on the side panels and side under spoiler for a lower-looking center of gravity

New, large floating rear spoiler

New 18-inch aluminum alloy wheels with the same three-dimensional design theme as the Mazda RX-8 R3 wheels

Interior

Driver-oriented dashboard design gives a roomy, wrap-around, sporty feel

New tachometer with red MAZDASPEED logo

New LED turbo boost gauge between the driver meters

Semi-bucket front seats with superior fit

Seat upholstery in black base color with a red graphic design and red stitching

Black interior color with an organic red graphic design throughout the cabin and red stitching for the steering wheel, shift boot, door trim, center console

Powertrain

Acclaimed MZR 2.3L DISI Turbo producing high power of 263 horsepower at 5,500 rpm, and 280 ft.-lb. of torque at 3,000 rpm

In-cylinder cooling effect from direct injection realizes ca. 10 percent more torque compared to conventional-intake turbo engines

Top speed of 155 mph

The world's first single-nanotechnology catalytic converter helps to reduce the amount of precious metals needed

Advanced boost pressure control suppresses sudden torque peaks for linear torque development

Left and right drive shafts optimized to minimize torque steer

Torque-sensing conical limited-slip differential (LSD) standard

Specially-designed, 6-speed manual transmission with wider gear ratio than before

Triple-cone synchronizers for first, second and third gears and a double-cone synchronizer for fourth gear for optimized gearshift operation

Low-viscosity transmission fluid reduces shift effort when the engine is cold

Chassis & Safety

Special reinforcements inside the front cowl member gussets and a large tunnel member for increased body stiffness

Modified coil spring rates for MacPherson strut front suspension and multi-link rear suspension

Larger diameter stabilizers with longer mount spans achieve greater roll linearity

Special dampers with increased damping strength contribute to higher roll stiffness

Now three highly rigid steering gear mount bushings instead of two used on the previous model for improved response to steering wheel action

New wider Dunlop 18-inch tires with improved grip, more rigid sidewalls and damping strength for more direct steering feel and a stronger one-with-the-car feel

Electro-hydraulic power assisted steering (EHPAS)

Large diameter 12.6-inch ventilated front disc brakes and 11-inch rear solid discs, 8+9-inch tandem brake booster and 1-inch large diameter master cylinder for powerful and stable braking

Newly-introduced electronic brake assist added to four-wheel ABS and DSC as standard equipment

source : Mazda Press