Knaus Tabbert Motorhome Group Knaus Tabbert Motorhome Group Erwin Hymer Group Company. Knaus Tabbert Motorhome Group is a hidden gem in the European motorhome market. All leisure vehicles are made to the highest standard employing over 2,500 employees. The production sites located in Jandelsbrunn, Mottgers, Schlüsselfeld and Nagyoroszi in Hungary. The secret of Knaus Tabbert success is the continuous development of leisure vehicles, using top materials and construction methods, making all sorts of recreational vehicles that customers love [...]