I can't stand it when people don't have the courtesy to get out of the fast lane for a faster moving vehicle. I am going to get a license plate frame that says "Move Over - Slower traffic Keep Right".
Then there is the idiot who won't get out of the fast lane, but when you try to pass them on the right they speed up so you can't pass.
What about the idiots who try to merge on the freeway going 45mph or slower.
The people who cut in and out of traffic to get a car ahead of everyone. Just pick a lane and stay in it. This asshole is just creating more traffic.

Ford drivers. . . from personal experience I have noticed that the majority of drivers who make the violations above and other idiotic moves tend to drive a ford product. I am not saying that only Ford drivers make these mistakes, but about 75% of the time it is a Ford product, i.e. Lincoln, Mercury, Jaguar, etc. . .
Do you have any others to add to the list.