[gggggg5]

>Are you trolling?

No?

> Where in France are you allowed to go 250km/h?

Nowhere, but like most EU countries there is nothing stopping you from going 250km/h. It's extremely unlikely that you'll encounter cops who'd bother to chase you, especially while using Waze and the likes.

Besides, how often do you see German registered cars driving the speed limit in France? Foreign registered cars are pretty much always speeding.