Been on many Euro trips in the zeds and always taken a good quality tyre sealant, had a few good saves too using it (though always in the UK.
Another top tip and you may well be sceptical but I have used this method and always carry the bits in all my cars now.
Buy a pack of soft plastic long golf tees. If you get a puncture (small hole) find the hole remove any offending object if possible, if not push it in and then push the golf tee in as far as possible by hand, then roll the car forward so the tee is pushed into the hole fully by the weight of the vehicle. Pump the tyre up, it will hold and get you to safety or a tyre repair shop, the top of the tee will wear away after a few miles and the ticking noise it produces will disappear.
I was still playing 18 holes of " f*** It " weekly back then and had the clubs in the car. I did this on my Mazda 6 on a front tyre, and drove around for 3 weeks, the tyre didn't lose any air. The Kwik fit guy couldn't believe his eyes when I went for the repair but agreed it was as good a plug as he had ever seen the added bonus the tyre wasn't wrecked as it would have been by tyre weld.
Trust me this will work as long as the hole is as big or smaller than the tee even if its just to get to safety/repair.