Smart on fire near Leesburg VA 7-21-10

Does anyone know whose car this is (was)? Nobody was injured. I don't have a way to edit the video, but the very brief report with two photos is just past the halfway point. This occurred on July 21.

Leesburg Today - The Journal of Loudoun County

So how did this happen? The fire is in the back of the car -- did the engine overheat? It has been about 100 degrees every day lately, and the location of the car fire was possibly near...

Smart on fire near Leesburg VA 7-21-10