Not quite what the topic heading says as this was what I did with my Superb over three weeks rather than today. We went on a trip to Lithuania and were away for three weeks, spending 3 nights in Vilnius and then 11 nights in Klaipėda, the other nights being spent on the outward and and return journeys. We went via France, Belgium, Netherlands, Germany and Poland, but missed Poland on the return journey. As SWMBO doesn't drive and I'm 71, we don't go too far each day but find somewhere nice where we can visit the town, have a good meal and be relaxed and ready to start again the next day.
The car behaved faultlessly and didn't miss a beat. It's looking rather travel stained at the moment as although we didn't have a drop of rain, it frequently got covered in dust that became very unsightly with any damp in the air overnight. We were in the car for 6 or 7 hours some days and we didn't feel uncomfortable at the end of each journey. Having DSG, ACC and traffic jam assist are essential for me on a journey like this and I would be thinking twice about undertaking such a trip without them.
Being retired and without children, we went before the schools broke up and took mid-week ferries between Dover and Calais when they were not too busy and avoided any long queues. On the return journey, we missed Poland by taking the ferry from Klaipėda to Kiel and saved an overnight stop on the way home. The cost of the ferry was about the same as driving, but we didn't like it and won't go this way again. The car had to be driven down to deck 2 in the bowels of the ship and we then had to walk up steep, narrow metal steps to deck 6 for our cabin with overnight bags. The stairs were long as the decks above us were for lorries, so they were quite tall. The cabin was very small and the air vent seemed to blow only warm air. On return to the car in Kiel, we had to reverse, make a three point turn then a 180 degrees up the ramp as deck 2 was a dead end. Despite this criticism, the food was reasonable and we both slept well.
Taking the ferry to Kiel meant that we didn't drive through Lithuania or Poland going home, which was a shame as this is my favourite section of the journey. The traffic through these two countries is usually light and costs are lower than in western Europe for fuel, hotels, etc. The ferry has the advantage though in that it heads west as soon as it leaves Klaipėda, but when you're driving you have to travel due east, then south before you head west to get around the Russian territory of Kaliningrad, so after about 7 hours of driving you arrive in Warsaw, which is virtually the same distance from home as the crow flies as Klaipėda!
We're back home now with lawns waiting to be cut, a car needing cleaning and lots of laundry for SWMBO!