[riffraff]

Seems like FIAT's situation might be unrelated, i.e. they are apparently being sued in the US for unrelated stuff[0] i.e. forcing dealers to report higher sales data than real (though the thing seems somewhat odd).

[0] http://www.wsj.com/articles/fiat-shares-suspended-several-ti...

[LoSboccacc]

In the rumor over rumor game, I think fca stock drop was more related to gm refusing a merger