Yeah, I've done the leave work in Zurich and drive-drive-drive with a stop at Carrefour at Mulhouse on the way. That includes northern France in fog at 130mph....
I had to stop on the M25 and get a Travelodge - I can't remember but I think I took the tunnel too.
Best I've done Zurich-Calais is 6 hours and a few minutes. In the time before cameras....!
If I'm on my own, I do it still in one leg - I did Ticino to northern Kent like that this summer and took a cheapo ferry because I was on my own. The train is totally worth it - but there was an incident on the train that day and trucks were queuing up and out of Dover to get on ferries because of the problem. It was on this day: http://www.independent.co.uk/news/uk...y-9589242.html
I usually stop around Metz on each leg. Firstly because it's a lovely city and secondly, it makes it less of a rush. It's all part of the annual adventure - we'll repeat it this summer.
Also it's worth being flexible about the days you travel.....makes the whole thing less stressful etc etc etc. And it's totally worth using the car.....I had to leave some stuff and I have a pretty reasonable load space that I had to use creatively.....with 3 x 19" alloys in there and the space-saver space left behind to get one underneath...!
For 4-5 days, planes and trains are the order of the day