(While flying is safer in many ways like deaths per mile or per passenger, I would bet you are a lot safer in a car than a plane in the event of a crash. Car crashes are dangerous, but plane crashes are nearly guaranteed fatalities)
(I can see that you are not from California. At 60mph, you are in serious danger of being rear-ended.)
http://en.m.wikipedia.org/wiki/List_of_driverless_trains
So what is it about flying? Probably the whole "trapped in a metal tube travelling at 500mph a mile above the ocean" thing.
That being said, I wonder what the driverless cars would do for the blind/visually-impaired. It could be quite liberating for them. They wouldn't have to live near public transit/take jobs with public transit access. Neat.