The Audi RS4 Avant features a naturally aspirated V8 engine, the same engine fitted to RS 5 Coupe. With a displacement of 4,163 cm3, develops an output of 450 hp (331 kW) at 8,250 rpm, for a specific output of 108.1 hp per liter. Maximum torque of 430 Nm in the range between 4,000 and 6,000 rpm. The V8 engine, with the heads painted red, will respond directly and accelerates the RS4 Avant in 4.7 seconds from 0 to 100 km / h top speed is limited to 250 km / h or, upon request, to 280 km / h. The 4.2 FSI engine, hand-assembled at the plant in Györ Hungary, is a concentration of great power and exemplary efficiency, with an average consumption of less than 11 liters per 100 kilometers. The S tronic seven-speed, standard, helps to increase the efficiency with high performance and relationship to last very long. The driver can rely on the dual-clutch gearbox, able to switch automatically from one gear to 'other in a moment, or manually operated shift lever or paddles on the steering wheel to use. For departures lightning is possible to activate the Launch Control, capable of managing the separation of the clutch for a starting point and the optimal degree of wheel.
The permanent four-wheel drive is standard on the RS4 Avant, like all other RS models from Audi. The heart is the center differential ring gear, a compact and lightweight component that distributes forces evenly between the front and rear axles, varying the percentage of allocation to a maximum of 70% before and 85% rear. Normally, the power split is at 40:60, thus favoring the rear. The self-locking center differential crown gear works in conjunction with the so-called torque vectoring, the selective management of the pair on the individual wheels, which acts on all four wheels. If the load on the wheel inside of the bend is less due to a dynamic driving style, the system jams slightly the wheel, even before taking over a shift undesirable. As a supplement available on request, Audi offers the sport differential, which proactively distributes the forces between the two rear wheels thanks to the two stages overlap.
The chassis of the Audi RS4 Avant is the result of an ambitious project. Many components of the front five-link rear axle and trapezoidal-link are made of aluminum. The electromechanical power steering operates with speed and is therefore extremely efficient. The relationship is direct, contact with the road is clearly perceptible, and during braking on surfaces with different coefficient of friction, the driver is constantly supported in the maintenance of the trajectory due to slight interventions on the steering. In addition to setting strict RS, the structure is lowered by 20 millimeters compared to the Audi A4 Avant. The new standard rims forged aluminum 19 "10-spoke high-sheen finish and are fitted with tires 265/35. Alternatively, Audi fitted 20 "wheels, new design, with tires 265/30, 5-spoke high-sheen V titanium color. There are two other variants of 5-spoke wheels rotor. Behind the large wheels are fitted with ventilated discs in the so-called Wave design, the front with a diameter of 365 mm.
The rings of friction with steel outer profile are perforated and fixed to the corrugated aluminum bells by means of pins: this particular mounting system reduces the tensions, quickly dissipates the heat and prevent the transfer of temperature peaks. The new shape of the friction rings allows a saving of about three kilograms for the unsprung weight. The brake calipers are painted gloss black, before feature eight pistons each and are embellished by the RS logo. The electronic stability control ESC is equipped with Sport mode and can be completely switched off. On request, Audi mounts on front axles carbon-ceramic brake discs with a diameter of 380 mm and 6-piston fixed calipers painted in gray. The ceramic disc is particularly lightweight, durable and resistant to stress.
The Audi drive select system is among the standard equipment of the RS4 Avant. It allows the driver to change the technical specification of the steering, the seven-speed S tronic gearbox and throttle between different modes: comfort, auto and dynamic. Even the sound of the exhaust system can be changed via Audi drive select, the program dynamic transition to downshift is accompanied by "doublets" to great effect. In conjunction with the MMI navigation system, is also displayed individually, that the driver can customize. In addition to the sport differential, Audi drive select can also affect on the dynamic steering, which allows you to change up almost 100% transmission ratio as a function of running speed and automatically controsterza with small pulses to reach the required limit.
As another option, Audi offers the technology in combination with dynamic dampers all'assetto sport plus with Dynamic Ride Control (DRC). Hydraulic piping connected to a centralized valve combine diagonally opposite the shock absorbers; in the gear fast cornering this system provides a structure more controlled, for example improving the load on the outside front wheel to the curve. The answer buoyancy sport plus is variable and can be adjusted in three stages by the Audi drive select. The exterior design reveals the athletic character of the RS4 Avant. The frame in matt aluminum look is built around the single-frame grille insert with hexagonal diamond polished anthracite. In the wedge-shaped headlights daytime running lights in LED technology are arranged around the xenon plus headlights. The air circulates freely through the large air intakes, interspersed with strips in the bumper and insert the line taut, the splitter which recalls the racing cars. Stand the jagged side skirts and wheel arch extensions. Components that recall the pioneering Audi four-wheel drive in 1980. The housings and frames the exterior mirrors are matt aluminum look, a special roof spoiler adds to the charm of the latter.
Inside the RS4 Avant dominates the color black with the exception of the sky, available on demand in silver moonlight. The chrome switches and controls add a touch of sophistication. The inserts are standard on carbon, but are available upon request in matt brushed aluminum, aluminum Race, piano finish black or steel fibers. The sports seats with integrated headrests are standard; are electrically adjustable and heated, and are upholstered in black leather combined with Alcantara. On request is available Nappa leather, in either black or silver moon, enhanced in both variations of a gray border. Alternatively you can ask for bucket seats or luxury air-conditioned comfort seats with ventilation. The multifunction sports steering wheel from the massive crown is flattened at the bottom, behind the steering wheel paddles are made of aluminum look.
The line uttered the bumper and the two oval tailpipes of the exhaust pipe dual dominate the rear with their position in the integrated speaker. On request, Audi provides a sports exhaust system with terminals blacks and a mighty sound. The taillights are complemented by elegant LED lighting elements elongated. The Audi RS4 Avant is longer than 20 mm and 24 mm wider than the A4 Avant, but lower than 20 mm. The tone of the body are eight, including a pastel and metallic, pearl four colors and two special paint colors pigmented crystal prism, silver and black panther. The underbody is completely covered and has air vents for the seven-speed S tronic gearbox and front brakes.
The driver information system with color display complements the menu with a RS Laptimer for lap times and a thermometer for the oil appears on the MMI display starting logo RS. The mask in the instrument is piano finish look and gearknob seven-speed S tronic is made in specially designed RS. A typical feature of RS are the door handles consist of two thin strips. The pedals, the footrests, air vents, the paddles on the steering wheel, the MMI buttons and other controls are in aluminum look. Metal inserts in the same embellish-sill, where the RS4 logo gives it a unique appeal.
For the passenger compartment, the line Audi exclusive offers valuable skin packages for all variations of seats, including also a package design with stitching lozenges for shell seats RS4. A wide range of modern health care systems and comprehensive communication program of optional extras, such as mobile phone preparation with Bluetooth car system to connect the RS4 Avant directly to the Internet. For the luggage compartment with a capacity of 1,430 liters, are available a rail system and a mounting kit, and the electric drive for the tailgate.
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