A car does Festung Ehrenbreitstein to Cologne in roughly 1h 24 over 101 km. The drive is 101 km against 79 km as the crow flies, which is the ordinary shape of a German motorway journey. The difference from every other way of making the trip is that it starts at your address and ends at theirs.
The fare is fixed when you book, so a closed lane or a slow stretch costs you time and not money — there is no meter and no waiting charge. Pickup is any address in Festung Ehrenbreitstein: a home, a hotel, an office, a venue. Drop-off is the exact address in Cologne, not the nearest station to it. The route crosses from Rheinland-Pfalz into Nordrhein-Westfalen; the price covers the whole of it including tolls.
One vehicle the whole way, one price, and a departure time you choose rather than one a timetable chooses for you. Journeys this length are mostly booked the same day or the day before, and the car can be at the door within the hour in normal conditions. Arriving by air instead? Cologne Bonn Airport Transfers covers every destination we serve from the airport.