Fisker released a statement about the charred remains of those 16 Karmas in NJ.

"...that the cause was residual salt damage inside a Vehicle Control Unit submerged in seawater for several hours. The company ruled out the cars' 20-kilowatt-hour lithium-ion battery packs as a cause of, or even a contributing factor to, the blaze."

http://www.foxnews.com/leisure/2012/11/06/fisker-karma-battery-not-behind-post-sandy-fire/?intcmp=features