Car rentals is typically an exercise in utter frustration. Now, even if a little, Google's latest voice search update might help. "When is my rental car reservation?" are the magic words, pulling together your booking numbers, pick-up and drop-off dates in a card that's been part of Google Now since last year. More broadly, the voice search can now program reminder alarms, too, completely hands-free. Oddly, the voice-based reminders prior to this update required a button-press to set the alarm, which pretty much defeated the point of the thing.