We did three fairly full-on days travelling from Lorient in Brittany to Lake Schluchsee in the Black Forest. The first day we stayed off the Toll roads completely. 280 miles in 8 hours of driving including half an hour for lunch.
Where we came unstuck was five miles before arriving at the Campsite in Blois when we had a blowout on the Caravan, on the dual carrriageway on the outskirts.
It took us an hour to change the wheel; Wrench was in the boot of the Cali which meant removing the electric bikes and emptying the boot to find it; Caravan spare buried under all kinds of stuff under the bed... Right beside a busy dual carriageway.
Then as soon as we arrived on site we set out looking for a Tyre repair place and then swapped the wheels over again. So a long days tow turned into a nightmare of a day.
Hence the next two days we took the easy (and expensive) way out and paid our Tolls.
Anyone interested in reading about our journey from Brittany, take a look here.
There's also a load of information about 10 years of touring around Europe with routes and campsites etc.