Flixbus takes around seven hours, traffic jams on that heavily-travelled route notwithstanding. Another example: Hanover -> Munich is ten hours by bus last I c

Flixbus takes around seven hours, traffic jams on that heavily-travelled route notwithstanding. Another example: Hanover -> Munich is ten hours by bus last I checked and 4.5 hrs by train. Bus is only usable for the price-conscious, i.e., no business travellers.