Do you have a source that McCain predicted the crash? I've searched and found nothing, but I have found statements as late as mid-september 2008 where he was still saying there was no problem, the economy was strong, la-di-da, etc...
As to Chrysler surviving, analysts are split in two, some say it's not salvageable, others say it's a turnaround in the making:
http://www.theglobeandmail.com/globe-investor/fiat-may-get-mileage-from-chrysler-after-all/article1373537/As to the facts, Chrysler has been looted mercilessly by Daimler that decimated its engineering department and reduced investment that hurt the product pipeline, but it's not all dark. The World Engine plant is still top-of-the-line, the line of engine is apparently cheap to make and the World Engine itself is pretty competitive in terms of power-per-displacement. The Pentastar V6 is coming, and by all accounts it will be extremely competitive in the V6 area. The Hemi engines are still around and offer great power for decent fuel consumption. FIAT is bringing over small car platforms and gas engine technologies that will ameliorate Chrysler's engines even more. Unlike the time of Daimler, the European partner seems eager to share technology and platforms, whereas Daimler refused to let new Mercedes technology be used in Chrysler by fear of "diluting" Mercedes, instead they sent old platforms down Chrysler's way to amortize the development cost, so this time the synergy will be real.
Of course, there's always the chance that this fails, and it will take at least a couple of years for the partnership to be felt in the product line, but it's not impossible for it to work, not impossible at all.