It looks like they found the root cause (ironically a cooling fan):
I think this is good news, and IMHO this too shall pass. Every new company has setbacks. Strong folks are behind Fisker, like Kleiner Perkins and NEA, two of the most powerful VCs on the planet. And now they have Tony Posawatz as the CEO.
Fisker might get bought some day, but they won't perish. I'd bet on it.