I've probably banged on about this enough on this forum, but I used to work for a driving experience company which operated on the roads of the south of France. My comments were based on my experience of that job, which went something like this:
We'd have corporate groups turn up, which always contained a wide variety of people, some interested in cars, some not. I'd give my usual speech about obeying the speed limits etc etc and they'd all nod convincingly. Many would even tell me they always respected it, or that they had never had a speeding ticket in 30 years of driving, etc etc.
I'm not exaggerating when I say that literally, over the course of around 2 years, not a single one genuinely respected the speed limit. Most would in town, but given a wide open road and the keys to an F430 or Gallardo, not a single one went less than 10MPH over the speed limit. I didn't particularly mind and would only remind them when I genuinely believed they were going too fast, but it always made me laugh how many people who I'm sure would tell you that they always respected the speed limit actually didn't.