A car does Hamburg to Cologne in roughly 4h 13 over 425 km. The drive is 425 km against 356 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 Hamburg: 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 Hamburg into Nordrhein-Westfalen; the price covers the whole of it including tolls. The same fixed-price arrangement covers Hamburg to Paderborn, a separate route with its own measured distance.
An executive saloon on a 4h 13 run is a quiet place to work: the same car the whole way, no changes, no platform, and a driver who takes the route. Longer bookings are usually made a day or more ahead, and the return leg can be fixed at the same time and the same price. Arriving by air instead? Hamburg Airport Transfers covers every destination we serve from the airport.