We mostly drive during the day (not on SS just yet). But sometimes the schedule works out well to leave home after a workday and drive toward our destination. I will only do this if I know the route, and most importantly, if I know where I will be pulling off to catch some sleep. I will not back into a site, nor setup camp in the dark if there is anyway to avoid it.
I have no problem driving a 12-14 hour day if it fits a schedule. Basically sunup to sundown.
West coast is home, travel to any of the western states.