Assuming $3.80 per gallon, and our electricity is 9.5c/kWh. I drove today from Charlottesville to Richmond and back. at the 40kWh point, I had gone just over 110 miles (40kWh = $3.80 in electricity here). Most of the driving was interstate between 70-80mph. I ended up home with 8 miles to spare, having traveled 173 miles (started with rated 238 or so). Definitely didn't drive conservatively which is why I would have gotten only 181 out of the full charge. I guess if I had driven 55-60 (but speed limit is 70) I would have gotten better mileage. It was 40-50F out, FYI.