If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
(I haven't verified that that statistic is correct; I'm taking it on trust.)
The US is much less densely populated than Europe. Are more of those miles that Americans drive on nice straight wide near-deserted roads?
Europe and the US are both big varied places. I bet those accident rates are highly variable. What do you see if you break them down by population density, urban versus rural, rich versus poor, etc.?