I have decided to get the 60 versus the 85. Yes it would be nice to have the extra mileage, but that is basically the only difference between the two besides the warranty and battery. There are many superstations being installed in my area so the mileage shouldn't be a problem. I can get the Tech package and some other perks with the 60 instead of spending 8K more for the 85. In other car models, there are different sizes, etc. This was pretty easy for me as who knows if I will keep it until 125,000 miles for the warranty.