Sportiness and sustainability do not contradict each other; in combination, they characterize the understanding of luxury in the course of electric mobility at Audi. The e-tron GT proves this with its leather-free design package. The sport seats plus with 14-way adjustment are upholstered either with a combination of artificial leather and the Kaskade material or with a mixture of artificial leather and the microfiber material Dinamica. Recycled materials are used in both cases, for example polyester fibers that were made from old plastic bottles, or textiles, or residual fibers from selvages. There are 119 recycled plastic bottles in each Kaskade upholstery set. The Dinamica material is similar to Alcantara, while the Kaskade material, whose seam design is based on the look of the Singleframe, is reminiscent of natural fibers such as wool.

The upholstery of the sport seats pro is made of a combination of two types of leather. The RS design package comprises microfiber material on the hood of the instrument panel carrier, the steering wheel, and the center console trim, with red or gray stitching adding highlights. The floor carpet and floor mats are made from Econyl in both models. This material consists of 100-percent recycled nylon fibers from production waste, fabric and carpet remnants, or old fishing nets.