The body of the RS 3* is extremely rigid, impact-resistant, quiet on the road and light. An acoustic windshield comes as standard. Further measures reduce interior noise even at high speeds, such as wheel housing shells made of non-woven material. The insulation used behind the pillar trim, behind the instrument panel and in the luggage compartment is made of the same light material. The curb weight (without driver) of the RS 3 Sportback is just 1,510 kilograms (3,329.0 lb) whilst the curb weight of the RS 3 Sedan is 1,515 kilograms (3,340.0 lb).
The backbone of the occupant cell is formed using hot-stamped steels. Before shaping, they are heated to nearly 1,000 degrees Celsius in an oven and are then cooled to about 200 degrees in a water-cooled stamping press. This extreme drop in temperature gives them a high degree of tensile strength. Hot-stamped steels have relatively thin walls, and this therefore makes them particularly lightweight. They are used in the transition from the front of the vehicle to the occupant cell, in the A-pillars, the B-pillars, roof arch, center tunnel, side sills and floor panels. The proportion of these parts in the body is 26 percent.
High-strength and ultra-high-strength steel grades are used in the side members and in the floor of the passenger cell. The engine hood is made of aluminum. It weighs 7 kilograms (15.4 lb) less than the same component made of steel. An aluminum profile behind the front apron serves as a crash absorber, thereby reducing the weight by 1.5 kilos (3.3 lb). The weight reduction at the front of the vehicle provides for a finely balanced axle load distribution. The result is the sporty and agile handling of the RS 3.
All terms marked in the text are explained in detail in the technology lexicon at www.audi-mediacenter.com/en/technology-lexicon
The equipment, data and prices specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.