In 4 hours, you can reach Berlin, Hamburg, Szczecin.
In 5 hours, you can reach Bremen.
In 6 hours, you can reach Poznań, Dresden.
In 7 hours, you can reach Kolding, Ústí nad Labem, Essen, Dortmund, Nürnberg.
In 8 hours, you can reach Warsaw, Prague, Munich, Odense, Wrocław, Köln, Frankfurt am Main, Esbjerg, Düsseldorf, Bydgoszcz...