http://Carwp.blogspot.com.br (from Audi Press Release) For more than two decades now, the Avant models from Audi have been enjoying growing success; they offer a unique combination of esthetic design and functional utility. The new A4 Avant continues this tradition - with even more space and elegance. The maximum loading volume adds up to 1,510 liters (69 cu ft) with the rear-seat backrest folded flat. That backrest is split 40:20:40 and can be folded down to the seat cushions using levers in the sides of the luggage compartment.

With the rear-seat backrest in the normal position, the Audi A4 Avant offers a loading space of 505 liters, which is 15 liters more than the previous model. The loading sill is just 63 centimeters (24.8 in) high and is scratch-protected by a stainless-steel cover. The loading width is exactly one meter (39.4 in).

With its cuboid shape, the luggage compartment offers great utility. A partition net and roof rails are standard equipment, as is the electrical luggage-space cover. Running on rails in the D-pillars, it glides upwards automatically when the tailgate is opened and back down again when it is closed, guaranteeing clear vision through the rear window at all times.

Even more everyday practicality: luggage-compartment mat and load-securing kit

If desired, Audi supplies further practical features. They include a variably foldable luggage-compartment mat for dividing up and protecting the loading space, a storage and luggage-compartment package with nets and straps as well as a rail system for highly flexible use of the luggage space. The related load-securing set consisting of a telescopic rod, straps and moveable eyelets can be stored in a recess in the loading floor. The tow-bar unlocks electrically by push-button; the new Audi A4 and A4 Avant are approved for towing trailers of up to 2,100 kilograms (4,629.7 lb) with gradients of up to eight percent.

As an option, Audi supplies gesture control for opening the trunk lid of the A4 or the tailgate of the A4 Avant: A proximity sensor in the rear bumper reacts to a kick motion so that the trunk lid or tailgate unlocks and opens automatically when the key is recognized. With the A4 Avant, there is also the option of an electric tailgate, which can also be closed by gesture control.

There are two buttons in the luggage compartment, one of which closes the tailgate while the other closes the tailgate and also locks the car. In addition, the driver can close the tailgate either with the button in the door or by pressing longer on the button of the convenience key. Remote-control keys and a start-stop button for keyless engine starting are standard equipment on the new A4 and Audi A4 Avant. The convenience key for keyless entry and ignition is an optional extra.

Benchmark for aerodynamics

When it comes to aerodynamics, the two new models dramatically outpace the competition. The A4 Sedan has a drag coefficient value of 0.23, and the Avant has cd 0.26. These extremely low figures are the result of complex fine-tuning and new solutions. The outer lines of the air inlets integrate additional openings - they guide some of the air stream over the wheel well, where it flows past wheels which have also been aerodynamically optimized. Details such as the exterior mirrors positioned on the door sills with their small integrated narrow stripes help enhance the aeroacoustics.

In every new car, the rear design plays a key part in automotive aerodynamics. On the new Audi A4 Sedan, the lines of the luggage compartment door make sure that the air flow is smooth. On the Avant, a roof edge spoiler with a strong downward slant performs this function. Narrow trim on both sides of the back window are the finishing touch on the aerodynamic concept.

The underbody of the new mid-sized models also contributes to their aerodynamic lines. The underside of the engine compartment is sealed off from the road, and broad trim under the passenger cell and the luggage compartments protects the metal. The wishbones on the rear axle are specially enclosed, and small spoilers guide the air flow at multiple sites, including under the wheels and at the tank. In conjunction with the design of the tailgate, the aerodynamically optimized underbody keeps the lift of the rear axle low.

The A4 TDI ultra models work with another kind of new aerodynamic technology: controllable cool-air inlet. This is a frame installed behind the radiator grille which houses two blinds that can be activated independently. They are closed as the car starts so that air resistance stays as low as possible, and when air is needed to cool the engine, first the lower and then the upper blind opens.

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