The material change made in the design of Night Train 2, specifically the new-generation Nightjet by ÖBB, includes a modern design with more privacy and facilities. Each two-person compartment now has its own toilet and shower, and the interior design is described as sober and elegant with white, embellished with a light silver motif reminiscent of the Austrian mountains. Additionally, new features on board include free Wi-Fi, which was previously limited to Railjets and the comfort couchette cars in the Nightjet. The design changes aim to enhance passenger comfort and experience. Images of the new Night Train 2 show a sleek, modern design, reflecting these updates. For more details, you can refer to sources such as Travels of a life and Euronews.