Test Drive Audi A8 D4 since 2010 Sedan
For the first time in the arena
From Audi always wait for curious innovations, beautiful constructive and technological solutions. Presentation in Munich did not exceptionOn the territory of the Stadium Alliance Arena, built to the 2006 World Cup, we were expecting several audi-a8 with new aggregates and systems.
ONE GATE PLAY
Under the hood of the flagship of the model range, two new, very different engines appeared. First of all, a diesel engine of 4.2 liters is the most powerful not only in the line of such engines in Audi, but also among all passenger cars. Another gasoline six is \u200b\u200b3.2 liters: the most advanced motor for the sedan of the representative class, previously tested on the younger models A3 and TT rather to 4.2 TDI.
Of course, the diesel sound will not be confused with anything, but in the cabin it can hardly hear, and you do not feel vibrations. No wonder the developers spoke about a very hard block of cylinders and good noise insulation of the workpiece.
I take care of the selector of the Tittronic, and the car, peacefully sucking, leaves the parking lot. Diesel reacts good-natured to the pedal. If you do not pull it more than a third, the motor is spinning leisurely, the machine smoothly goes to the highest steps quiet and grace.
So the entrance to the autobahn under the hood comes to life breakdown and presses in the chair. I remembered yesterday's takeoff, only there the noise was much more. The speedometer arrow imperceptibly approached 200 km / h, the motor has started reminding himself with a gentle bass, but in the cabin you can still talk without increasing the voices. The takeoff is canceled road repair.
I give the keys. And when the supermotor appears in Russia and how much will it cost? Specialist Audi is guilty of hand to the hands of them, do not plan to deliver to you yet, but in the near future such cars, I am sure that they will come to the Russian market.
So I was in a hurry behind the wheel, which immediately did not pay attention to the new faces of test audi-a8. The trapezoidal grille of the SingleFrame radiator (single frame) is crowned since March the nasal parts of all eights (previously only the most powerful, with the engine W12).
I am doing a casting now under me cheaply sorry, the most accessible option with a gasoline 3.2-liter engine and a variator of a multitral. Put your hand on the selector, after a heavy duty diesel engine, this six seems calm. Of course, 260 horses confidently pull almost a two-tone wagon, but no capacity is completely excessive. But the gasoline motor is noticeably delicately driving on the ears even on 5000 revolutions, the sound is soft and unobtrusive.
About this unit and variator, the magazine told not so long ago (SMS, 2004, No. 10). The main program is completed, but the organizers prepared something interesting.
ADDITIONAL TIME
Alliance Arena is already involved in loud premieres. At one of the eights, the possibilities of a high-class audio system, released jointly with the Danish Bang & Olufsen company, a well-known manufacturer of Hi-Fi hardware manufacturer, demonstrated. Specialists carefully investigated the acoustic features of the salon volume, the form applied materials. Of course, the system tracks the vehicle speed so that the favorite melody does not shove the aerodynamic noise and rustic tires.
The sound on the driver and passengers is poured from active 14 speakers. Every own amplifier (by the way, their total capacity is more than 1000 watts). Protective grilles are made of anodized aluminum, as well as the A8 body itself. You turn on the installation from the instrument panel, two high-frequency speakers with acoustic lenses are departed, evenly distributing sound through the cabin. This concert hall on wheels is a real masterpiece.
The cost of the B & O Advanced Sound System audio system is not yet declared, the public will demonstrate it this year at the Frankfurt auto show, and on sale such music boxes will appear closer to 2006.
On extreme line
Next door showed brake discs from composite ceramics for Audi A8 with the W12 engine. At the heart of the material borrowed from aviators, rigid and wear-resistant silicon carbide (its crystal lattice is similar to a diamond), reinforced with high-strength carbon fibers.
In such brakes, specialists assured several important advantages over ordinary ones. The steel disk is heavier ceramic almost twice. In proof, the testimony of two scales of their dial was shown 17.3 kg and 8.5. In addition, the novelty works more efficiently, including at high temperatures. But in contrast to sports carbon black brakes, these do not require warming up and provide an excellent deceleration at first pressed on the pedal.
When an article came out, cars with new brakes will already appear on sale, at least in Europe. First, they will be offered as an option. There will be demand will be allowed into mass production.
Audi A8 from the first visitors Alliance Arena. A year later, the Main Event of the World Cup will take place here. Fans will wait for an exciting game, sharp flanking passes, beautiful heads in nine. And some by this time will try to take places in the honorary eighth row of the model range of the Audi brand.
Eighth miracle technology
The eight-cylinder Diesel Audi, which develops 240 kW / 326 hp, belongs (together with 2.7 and 3.0 TDI) to a new family of V-shaped engines with chain-drivers of camshafts and hinged units. The design is a very compact overall motor length of only 520 mm. And a lightweight block, cast from high-strength cast iron, weighs only 62 kg. Grooves on the operating surfaces of the cylinders cause an ultraviolet laser. This will help reduce the oil consumption and the formation of soot in its combustion (SP, 2004, No. 12).
The characteristic of the engine confirms Motorists worked for fame. Already at 1600 rpm, the new 4.2 TDI gives the maximum torque and holds it to three more than a thousand comfortable shelf. The Common Recent Generation Rail develops the injection pressure to 1600 atmospheres (250 more than that of the predecessor), and the nozzles with piezoelements dose the mixture more precisely traditional, with solenoid valves.
Two turbine turbine turbocharger can be unwound to 226,000 rpm. Lower the temperature of the air supplied to the combustion chamber, two radiator at Audi A8 for better cooling they are located under the headlights. In addition, on low revs, electronics covers the flap in the inlet pipeline, a vortex is formed that improves the combustion process. With elevated loads, the channel is open for a full filling of cylinders.
Maxim Sachkov
Source: Journal "Behind the wheel"