High-strength and ultra high-strength steels comprise roughly two-thirds of the body of the Audi A1* and A1 Sportback*. Form-hardened parts represent another eleven percent – the blanks are heated in a furnace to extremely high temperatures and are then immediately shaped in a cooled pressing tool. The temperature jump gives it extreme tensile strength which enables thinner wall thicknesses and lower weight.
The body’s rigidity also plays an important role in the acoustics of the both compact models. Great effort went into optimizing the noise emissions and rigidity of the metalcomponents; all areas in which forces are introduced have been reinforced. The acoustic concept is rounded out by an insulating package that consists of lightweight materials.
The new A1 models attain a low cD value of 0.31, and wind noises are minimal. Many car body details – from the wheels to the small trailing edges of the tail lights and the roof edge spoiler – contribute towards aerodynamic air flow. Polymer sheathing covers much of the underbody; it reduces the cD value by around ten percent. The Singleframe and the area around it are fully sealed, so that the inflowing air reaches the radiator with practically no losses.
In terms of passive safety, the two premium compacts have state-of-the-art equipment. The form-hardened sheets in the A and B pillars, in the roof line, in the wall in front of the footwell and in the rear sections of the side members make the occupant cell very strong. In the field of pedestrian safety as well, the two models exceed legal requirements. The engine hood is secured to the body by two release latches.
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.