I truly hate driving and find it a colossal waste of time. I always found that since I can drive. I work in the car like I do at home. So yeah self driving cars would be most excellent. Until that time, I make sure I always have someone who finds it pleasurable like yourself. Although day dreaming or meditation would give me some pause; seems both would take away some emergency responses because loss of focus? I rather have someone who actually likes the driving itself and luckily I have a few friends like that.