I thought the post says the commute is about 50 miles a day. Should be doable in all electric mode with 53 miles of range. Obviously some days might be more challenging and some days might be well in excess of 50 miles, so he might have to go into charge sustaining mode.Are you saying that you can drive almost 100 miles on battery without charging?
Plop yourself in the outermost lane practical, set the cruise control at the limit when you can, you'll make it.The drive to work is 25 miles to get there and 25 miles to get home. There are a couple hills, everyone is going 65 to 75 MPH and on my way home at night it is pretty cold and usually raining so I after about a month I find that I end up with about 3-5 miles that I travel on ICE just before I get home.