Germany: Hamburg, Ingolstadt, Karlsruhe, Ludwigsburg, Mannheim, Munich, Nauheim, Regensburg, Rüsselsheim, Sindelfingen, Willich, Wolfsburg
Australia: Melbourne, Sydney
Bulgaria: Plovdiv, Sofia
China: Shanghai
Poland: Bielsko-Biala, Boleslawiec, Jelcz-Laskowice, Opole, Tychy, Walbrzych, Warsaw, Wroclaw
Romania: Timisoara, Arad
Serbia: Kragujevac, Belgrade
Slovakia: Martin, Żilina, Namestovo
Spain: Barcelona
USA: Detroit