Does driving show a person's personality?

I have just spent a couple of days driving from Briançon to Budapest and on my way I have met some fun drivers. But nothing was like the few hours I spent in Slovenia!! The motorways are only 2 laned so people should get over to the right but do they? No! Not only that, after overtaking a rather slow lorry and caravan, a slovenian driver pulled up in front of me and put on his brakes!! A way of telling me that I had held him up, this is rather French in character! Then in Ljubljana I had time to do a left turn at some lights and got a long hoot from an irate woman driver! I do hope that this is not the general characteristic of the Slovenes as it has left a rather negative idea for me. Although as I was going about the town in Ljubljana people were friendly! Who knows?