Bought my Insight Thursday and so far, have 3 round trip commutes to work. My commute is 63 miles each way and it's about 1/3 rural state roads, 1/3 interstate highway and 1/3 urban surface roads, and each commute has gotten progressively better as I (re)learn how to drive
Day 1: 47.7mg - Day 2: 48.2mpg -Day 3: 49.8mpg (as indicated)
Those numbers are on my commute TO work. My drive home was about 3 mpg less...don't really know why. Living in FL I can't really assume its elevation change, but could be I guess.