Thanks to Audi lightweight construction technology, the body of the RS 7 Sportback leads the segment when it comes to weight. The aluminum hybrid construction brings about 15 percent less to the scales than a comparable all-steel design.
More than 20 percent of the body is made of aluminum. The struts in the engine compartment and the cross-members behind the front and rear bumpers are aluminum sections. The front fenders, the engine hood, the cross-member below the instrument panel, the long rear lid and the doors are made of aluminum panels. Die-cast aluminum serves as the material for the strut brace in the front section of the car. With a weight advantage of a good 10 kilograms (22.05 lb) over steel, the two strut braces contribute to the finely balanced axle load distribution.
For Audi, the principle of lightweight design means using the right material in the right place to achieve optimum function. Many components made of hot-shaped steel are therefore used in the passenger compartment. These components are first heated in a furnace to over 1,000 degrees Celsius and shaped immediately thereafter at around 200 degrees Celsius in a water-cooled pressing die. This abrupt change in temperature creates an iron-carbon structure of exceptional tensile strength. These high-tech steels are relatively thin and therefore light. Audi also uses tailored blanks – sheets made of individual sheets of different thicknesses – in many areas.
The body of the RS 7 Sportback is very rigid and strong, providing the basis for its sporty precise handling, the uncompromising build quality, the excellent crash safety and the quiet on board, free of intrusive noise. Vibrational comfort is another strength. Vibration levels at the contact points between the passengers and the body have been painstakingly minimized, and all points where force inputs occur when the car is in operation are reinforced.
The Audi RS 7 Sportback has a frontal area of 2.29 m2 (24.65 sq ft) and a coefficient of drag of 0.30. In its aerodynamic concept, even the smallest details are very important. The paneled underbody channels air in a controlled manner, and air flows through the engine compartment with minimal losses.
The equipment and data specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.