Though we still haven't received official word on the cause of the fire, we have stumbled upon some additional details. Specifically, General Motors spokesman Rob Peterson definitively told the Hartford Courant that, "The investigation for General Motors is over. The Volt did not start the fire ."
Previously, General Motors' global electric vehicle executive, Doug Parks, told the newspaper that:
It's expected that a final report – detailing the exact cause of the fire – will be issued soon.
While the Volt's battery pack sustained damage, it was not extensive enough or of the type that would suggest that it caused the fire. In addition, there is clear evidence based on moderate damage to the cord set and charging system that neither component caused the fire.
[Source: Hartford Courant]