At the Caravan Salon 2017 in Düsseldorf (August 26 – September 3), the Volkner Performance S motorhome was displayed with a price of approximately €1.5 million. The base price is €989,000, with the remainder for luxury options. The 12-meter vehicle features a slide-out section, three air conditioners, autonomous heating, 1700 Ah batteries, and 1200 W solar panels. A patented garage under the floor can store a car (e.g., Porsche or Mini Cooper) via a hydraulic platform. Gross weight is about 18 tons, powered by a Mercedes-Benz or Volvo turbodiesel with 430 or 460 hp.