French Route planner with custom speeds?

On French motorways the lorries travel at 90kph about 58 mph. Sometimes they have lorry races when one, travelling marginaly faster then another, will overtake blocking a two-lane road for some time. As a caravanner, or motorhomer over 3.4 tonnes, you will
have to stay on the inside lane with the camions except when overtaking.

70mph is too slow to expect the stay cruising in the second or middle lane: you'll need to be doing about 75 with bursts to 80 and beyond unless you want grief from the locals!

However, if you are German and are towing your caravan with a big brutal 4x4 you can barrel on down the autoroute at any speed.

Typo in our contribution, 3.4 should have 3.5 as AD points out. As we're within the 3.5 limit, we can boost all the way to 130kph to get clear of clumps of camions and caravans

You divide the distance by the MPH you intend to travel at