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Mercedes-Benz has started completely afresh for the third generation of its compact front-wheel drive A-Class. The latest Mercedes-Benz A-Class is based on all-new vehicle architecture and assembly techniques and introduces sportier and more dynamic design with greater emotional appeal. It is powered by an updated family of turbo-charged direct-injection petrol and diesel engines delivering up to 211 hp with CO2 emissions as low as 98 g/km.

The new A-Class is available with Mercedes-Benz' first double-clutch seven-speed automatic transmission (7G-DCT), and the range also advances the company's policy of ensuring that as many people as possible enjoy the protection of advanced safety features, with the innovative Collision Prevention Assist headlining a comprehensive list of active and passive protection features fitted as standard.

The new Mercedes-Benz A-Class is the second model in what will eventually become a family of compact front-drive cars from Mercedes-Benz, which began with the latest B-Class. But while the B-Class is focused on family usage, providing the space of a much larger saloon within a compact-car footprint, the A-Class has a more dynamic role to play, as is evident in its dramatic styling.

Mercedes-Benz has also introduced a new 2.0-litre direct-injection turbo-charged petrol engine to its Mercedes-Benz A-Class range generating 211 hp - sufficient to propel the car from zero to 62 mph in 6.6 seconds and on to a 149 mph top speed. This is standard with the exclusive range-topping Engineered by AMG specification, as is the 7G-DCT double-clutch automatic transmission, along with AMG-inspired styling, trim, equipment and chassis tuning.

Two new diesel engines also make their debut in the third-generation A-Class, giving the car potential fuel economy of 74.3 mpg with CO2 emissions down to 98 g/km.

At the other end of the spectrum, the 2.2-litre 220 CDI engine generates 170 hp and 350 Nm of torque. In conjunction with the standard 7G-DCT transmission, it accelerates the A-Class from 0-62 mph in 8.2 seconds. It meets the EU 6 emissions standard not due to come into force until 2015, while posting a combined fuel economy of 64.2 mpg and CO2 emissions of just 115 g/km, demonstrating that with the new Mercedes-Benz A-Class, performance and efficiency are not mutually exclusive.

Designers and engineers are rarely given the luxury of a completely blank sheet of paper when starting work on a new car, yet that is precisely the opportunity Mercedes-Benz engineers were given for the new A-Class. Longer, wider and lower than the previous two versions, the latest model is a more emotive and dynamically engaging car that's little changed from the radical Concept A-Class given a wildly enthusiastic reception at the 2011 Shanghai Auto Show.

It is a progressive and highly sculpted five-door two-box model, now based on a monocoque construction rather than the sandwich floor assembly of the previous two generations. This not only dramatically reduces the overall height of the car, but it also lowers the seating position of the occupants by 174 mm, which in turn brings down the centre of gravity by 24 mm to allow much more dynamic and agile driving characteristics. These are even more emphatic in the 15 mm lower AMG Sport and specifically tuned Engineered by AMG versions.

The exterior cleverly mixes sharp edges and tautly drawn convex and concave surfaces which seem to constantly change with the angle of the light, particularly along the sides. The long, bold front leads into a pronounced V-shape, culminating in the radiator grille with the central Mercedes-Benz star between double slats, or a single slat dividing a unique diamond grille in the Engineered by AMG version. The headlamps and the light functions within them are key elements of the design concept.

The design emphasises the class-leading aerodynamics of the new Mercedes-Benz A-Class, with its drag coefficient of Cd 0.27. This is especially apparent in the smooth arc of the roof, which finishes in a flat edge, and a spoiler which conveniently hides the aerials. The tailgate is another interplay of convex and concave surfaces which further demonstrates the interaction between design and aerodynamics: the surface of the tail lights improves airflow around the car through defined break-away edges.

The interior of the A-Class represents a dramatic step forward in the quality of materials used, as well as the consistency of design. The front of the cabin adopts an aviation-inspired theme, with the dashboard shaped like the wing of an aircraft and the round air vents reminiscent of jet engines. Meticulous attention to detail is apparent everywhere, from the 'cool touch' real metal electroplated trim embellishers to the free-standing display screen with a black piano lacquer-look front panel and a flush-fitting silver frame.

The rear provides generous room for three passengers, despite looking as though it has only two individual seats. A 341-litre luggage area can be expanded to 1,157 litres with the rear seats folded. In all models the seat backrests are split 2/3:1/3.

Altogether, there are seven direct-injection turbo-charged engine options in the new A-Class, all characterised by high specific outputs, flexible performance thanks to strong torque across a wide rev range, outstanding efficiency and excellent refinement.

In addition to the new 211 hp 2.0-litre petrol unit (A 250 BlueEFFICIENCY) and the new 109 hp 1.5-litre (A 180 CDI BlueEFFICIENCY) and 170 hp 2.2-litre (A 220 CDI BlueEFFICIENCY) turbodiesels, there are two further petrol units (A 180 BlueEFFICIENCY and A 200 BlueEFFICIENCY) and two more diesels (A 180 CDI BlueEFFICIENCY 7G-DCT and A 200 CDI BlueEFFICIENCY), which were introduced with the latest B-Class. All engines feature ECO start/stop as standard.

The A 180 BlueEFFICIENCY is powered by a 1.6-litre 122 hp engine, while the A 200 BlueEFFICIENCY uses a 156 hp version. The diesel engines are 1.8-litre units; a 109 hp option is fitted in conjunction with the 7G-DCT transmission in the A 180 CDI BlueEFFICIENCY, and a 136 hp variant in the A 200 CDI BlueEFFICIENCY.

A six-speed manual gearbox is standard with the A 180, A 200, the 1.5-litre A 180 CDI and the A 200 CDI, while the A 250, the 1.8-litre A 180 CDI and the A 220 CDI have the 7G-DCT transmission. This is an option with the A 180, A 200 and A 200 CDI. Fuel consumption has been reduced by up to 35 per cent compared with the preceding models, despite considerable power increases.

The petrol engines are all-aluminium M 270 turbo-charged direct-injection 16-valve four-cylinder units. They are extremely versatile engines which are already being phased into larger Mercedes-Benz models to help bring down fuel consumption and emissions. They employ technology first introduced in 2010 with the ultra-modern BlueDIRECT V6 and V8 engines for the S-Class. The combustion process is based on third-generation Mercedes-Benz direct- injection technology with highly precise, multiple piezo-injections.

With the exception of the new 1.5-litre engine, now in its sixth generation and specially adapted by Mercedes-Benz for use in the A-Class, the diesel engines are developments of the OM 651 fourth-generation 2.2-litre four-cylinder unit premiered in 2008. Since then the OM 651 has been setting standards for performance, torque, economy, emissions and smooth running. It is in more widespread use than any other Mercedes-Benz diesel engine.

The instantaneous response of the engines and the slick operation of the six-speed manual and triple-mode (Economy, Sport and Manual) 7G-DCT transmissions in the new A-Class is complemented by the agile chassis, which features a four-link rear axle, electro-mechanical power steering, powerful all-round disc brakes and advanced driver assistance functions such as specially tuned ESP® Electronic Stability Control.

There are three different suspension tunings, with a comfort set-up for standard, SE and Sport models, a sportier 15 mm lower arrangement for AMG Sport variants and the ultimate AMG-tuned system in the A 250 BlueEFFICIENCY Engineered by AMG.

All benefit from the more dynamic new proportions and lower centre of gravity of the latest Mercedes-Benz A-Class. During development, the engineers made intensive use of the driving simulators at the Mercedes-Benz development centre in Sindelfingen to create a digital profile of the driving dynamics of the new A-Class. This enabled them to achieve the right balance of agility, nimbleness, stability and comfort required for each version before a single prototype had been built.

In keeping with every new model introduction from Mercedes-Benz, the latest A-Class extends the protection afforded by advanced safety technology to as many people as possible by offering features that are the preserve of only the most expensive cars from some brands.

In the A-Class, this starts with an extremely robust body shell incorporating extensive areas of high-strength and ultra-high-strength steels for rigidity with lightness, and includes the innovative radar-based accident warning system, Collision Prevention Assist, which is fitted as standard. This gives visual and audible warnings to alert a distracted driver to the possibility of a nose-to-tail collision, and prepares the standard Adaptive Brake Assist feature for the most effective braking response as soon as the driver hits the brake pedal.

The Attention Assist feature to recognise and alert a drowsy driver is also standard, along with Adaptive Brake Assist incorporating Hold and, on manual models, Hill-Start Assist. This primes the brakes for maximum stopping effect in a possible emergency, adds to convenience by holding a stationary car without the driver having to keep a foot on the brake pedal and prevents the car from rolling backwards when setting off on uphill gradients. Seven airbags, including a driver's knee airbag, and an Active Bonnet to provide additional pedestrian protection are also fitted to every Mercedes-Benz A-Class as standard.

Available features include Lane-Keeping Assist and Blind Spot Assist, Speed Limit Assist, Active Park Assist with Parktronic, Distronic Plus autonomous acceleration and braking to maintain a gap to the car ahead, the Mercedes-Benz Intelligent Light system and the anticipatory Pre-Safe® occupant protection feature.

The new A-Class is optionally available with COMAND Online in-car internet services, and in 2013 it will be offered with seamless integration of the Apple iPhone® in conjunction with a revolutionary new user interface design. Highlights include advanced navigation software from Garmin, with internet-based real-time traffic information, online destination searches and 3-D map display.

COMAND Online provides internet access via a web-enabled mobile phone, plus various Mercedes-Benz services on the move. These include weather information, news, and a special destination search via Google, as well as the option of downloading a route previously configured on a PC using Google Maps.

Exterior

Mercedes-Benz has taken a dramatically different approach to the design of the new A-Class. Where the previous two models were essentially pragmatic - ingeniously packaging the space of a large saloon into a car with the footprint of a city runabout - the new A-Class adds rewarding elements of dynamism and excitement to elevate it above its compact front-wheel-drive five-door hatchback rivals.

Radical, progressive and emotive, it brings the sculpted look and feel of the latest Mercedes-Benz design idiom to the compact car class.

The key dimensions are in themselves enough to show just how much the A-Class has changed. At 4,292 mm long, 1,780 mm wide and 1,433 mm tall, it is 409 mm longer, 16 mm wider and almost 180 mm lower than the model it replaces.

Its radical form language was first seen in the Concept A-Class at the Shanghai Auto Show of 2011. That highly acclaimed design has now been transferred to the production model - a huge challenge in a car of compact dimensions, which had to match its rakish and exciting appearance with a usable and practical five-seater interior.

Design at Mercedes-Benz always begins with an internal competition among all the company's designers. The winning entry for the exterior of the Mercedes-Benz A-Class came from Englishman Mark Fetherston, a graduate of Coventry University's School of Transport Design, who has worked at Mercedes-Benz since 1999. Fetherston has excellent design form at Mercedes-Benz - he also designed the exterior of the SLS AMG gullwing supercar.

For the flowing, sculpted shape of the A-Class, he was influenced by the patterns of sand dunes and winter landscapes - and even the sleek lines of the Concorde - and was able to take advantage of the encouragement given to the design team by the Mercedes-Benz Board to be more progressive.

The sides of the new A-Class are characterised by sharply defined edges and tautly drawn convex and concave surfaces, which seem to constantly change as the light catches them. The pronounced front end meets in a prominent V-shape, with the Mercedes-Benz star mounted in a two-louvre grille in either chrome, silver, black or body colour, depending on model.

There are three lower air intakes in the bottom section of the bumper. The A-Class Engineered by AMG has a single-louvre diamond-pattern grille and black edges around the air intakes, with a red highlight line in the central section.

The headlamp units are a key element of the frontal design. The light modules have been arranged to deliver a flare-effect for the daylight running lamps and turn indicators, creating an instantly identifiable visual signature for the new A-Class. Bi-xenon headlamps and LED daytime running lights are fitted to the A-Class Engineered by AMG.

The new A-Class has a class-leading drag co-efficient figure of Cd 0.27. Nowhere is this more apparent than in the dynamic and smooth arc of the roof, which finishes in a spoiler that neatly hides the aerials and lends structure to the whole assembly.

Along the flanks, a rising beltline in either black or chrome enhances the car's pronounced wedge profile, while another line rises from the mid-point of the front wheel arches to create powerful shoulder muscles at the rear, giving the new Mercedes-Benz A-Class a coupé-like stance. Between these two crisp lines are sensuously moulded sculptured panels.

Dynamic sills add an athletic finishing touch, particularly pronounced in the A-Class AMG Sport, which rides 15 mm lower than other models, and the A-Class Engineered by AMG with its AMG sports suspension.

The interplay of convex and concave surfaces and taut edges is repeated at the rear. The tail lights - LED units in the A-Class Engineered by AMG models - continue the line of the muscular shoulders back towards the rear. Their horizontal orientation emphasises the greater width of the new model.

The tail-light clusters are also pointers to the superior aerodynamics of the new A-Class: not only are they a design feature in themselves, but their carefully shaped break-away edges have been designed to improve airflow from the rear of the car.

Interior

The interior of the new A-Class was also inspired by two concept cars. The starting point was the Mercedes-Benz Aesthetics No 2 sculpture revealed at the 2011 Detroit Auto Show. This was then incorporated into the Concept A-Class, which was created at the Mercedes-Benz Advance Styling Studio in the northern Italian city of Como in time for the Shanghai Auto Show in September of the same year.

If the dash area, vents and instruments were inspired by the world of aviation then the seating areas, space, quality and attention to detail have been designed to give the spacious feel of a far larger car.

The objective was to complement the sleek look of the exterior while giving the Mercedes-Benz A-Class a high-quality appearance and feel unique in its segment through the design and the choice of materials, colours and textures.

The sweep of the dash continues the aircraft wing-inspired theme of other recent new models from Mercedes-Benz. It incorporates five circular air vents with electro-plated outer rings on SE versions and above. Airflow through these vents is controlled by cruciform nozzles reminiscent of jet engines. In the A-Class Engineered by AMG these vents feature a red insert matching the car's front lower centre grille. The electro-plating process gives the nozzles a tactile metal finish with a cool-touch effect, and has been extended to all trim elements.

The instrumentation and control screen appear in the upper part of the dash, while a broad lower section contains the switchgear and control buttons. The production process used for the lower section allows a wide diversity of soft-touch surfaces to further emphasise the quality and attention to detail within the cabin.

The instrument cluster is made up of two large round dials, each with a smaller dial set within. The dial faces are either black or silver with a chequered flag design, depending on model. Likewise, the dial needles are red or white, according to the trim level.

To the right of the instrument panel is a free-standing 5.8-inch tablet-style colour display screen with a black piano lacquer-look front panel and a flush-fitting silver frame. This is linked to the Audio 20 entertainment system or the option Audio 20 system with Media interface.

The new A-Class has been configured so that an Apple iPhone® can be fully integrated into the operating and display system via the Drive Kit Plus special app.

For all its rakish looks and compact dimensions, the A-Class is a full five-seater hatchback, but the rear accommodation has cunningly designed to look like two individual seats. All models from SE have sports seats with integrated head restraints, and sports pedals with rubber studs.

A sports three-spoke multi-function steering wheel with leather trim, perforated in the grip areas, is fitted to SE and Sport versions of the new Mercedes-Benz A-Class, while AMG Sport and Engineered by AMG versions have a flat-bottomed sports steering wheel trimmed in nappa leather.

The rear seat backrests are split 2/3:1/3 and the two sections can be folded individually to expand the standard 341-litre luggage are to a maximum of 1,157 litres. The luggage area allows items more than a metre wide to fit between the wheel housings.

Articles Source : Netcarshow