Driving in circles doesn't prove anything. But, he didn't mention it in his original article or the follow-up blog post. In fact, he took great pains to write about all the hardships he endured to maximize the car's range, and how he still ran out of battery. So, one wonders why he would do it. It seems like an awfully odd thing to do, unless you are deliberately trying to run out of charge.

Broder's defense to accusations that he should have charged overnight in Groton is that he was just acting like a regular driver. When you drive a conventional car from DC to Boston, do you pull up to the gas pumps and drive around in circles until you run out of gas? Do you add a few gallons and take off, or do you wait until the automatic shutoff on the pump trips? I think a "regular" driver would charge fully (at least a full "standard" charge) at each Super Charger and then drive directly to the next way-point, not unplug at 75% and pointlessly drive in circles.