Cutting up a car...

You'll have to determine where the cuts will have to be made but here is the set of air hammer bits I use:
http://buy1.snapon.com/catalog/item...9&group_ID=844&store=snapon-store&dir=catalog

I would say that I use the two outside bits for 99% of the chiseling. The one on the lft. for slicing thin sheetmetal and the one on the rt. for breaking loose spot welds that I have already drilled out. Use a Blair spot weld cutter or just get a few 5/16" drill bits to get through the spot welds.