Start with the arrival deadline
Hotel check-in is flexible; a flight, train or business appointment is not. If Munich arrival has a hard deadline, calculate the direct journey first and avoid building the schedule around sightseeing.
Border crossings inside the Schengen area do not remove the need to carry valid travel documents. Roadworks and traffic around both cities can still change the driving time.
Regensburg as the easier city stop
Regensburg works for travellers who want a meal and a walk through a compact historic centre. Decide in advance whether the driver should wait or whether the city is the end of one transfer and the start of another.
A short pause and a longer sightseeing visit are operationally different, so the requested waiting time should be visible in the quote.
Dachau Memorial as a destination visit
Dachau Memorial is not an interchangeable roadside attraction. Check its official visitor guidance, opening information and rules for the date of travel, then allow enough time for a respectful visit.
If the memorial is essential, make it the one principal stop rather than adding it after an already crowded itinerary.
Vehicle and luggage planning
Choose the vehicle from the real passenger and suitcase count. Airport bags, skis, prams and oversized cases can make a minivan the practical option even for a smaller group. Europe Pickup displays the complete vehicle price after the route is calculated.