Everybody likes to makes assumptions. I wanted to see what the real cost was of hitting 10,000 miles, and the true cost of driving fast in this awesome Model S. Here is the first pic: Looks like my true average is 386 Watt hours/mile. I used 3,859.3 kWh. I charge at my house, used 2,724 kWh: I also charge at my office, used 592 kWh: which means I used 544 kWh at free stations like the Service Centers, Kohl's, Hotel's, etc. If I had to pay for electricity, that would mean it cost me $364.76 to drive 10,000 miles (based on $0.11/kWh national average.) Hauling ass in a Tesla would cost $0.036/mile for most people, or $10.94 to travel 300 miles. With Solar, the cost is ZERO!!!