Ah yes, I never used that. My car isn't very recent (about 10 years old now), and I drive very little (about 2-3k per year; I take the train to go anywhere far) because I hate it. But the adaptive part would make it much more useful indeed.

However, something that is extremely annoying in France is that speed limits tend to change very often and abruptly. I just think that trying to solve the problem solely at the car level is always going to have too many limitations...