So, two minutes after exiting the coffee shop and beginning my drive, I get a Google Now update, "16 minutes until Home -- Heavy construction on I90"
1. I've never set a "Home" location
2. How do you know I'm driving!
3. Why on earth did I pay for BMW's awful Nav system...
ps. I assume "Home" defaults to most common GPS location and the driving is detected by d/t but, well, pretty impressive Google, though it would be better if you did the driving too