FBI starts probe of donated autos : When carmaker DaimlerChrysler AG donated 40 trucks and sport utility vehicles to Katrina-crushed governments in southeastern Louisiana last September, company officials never imagined some of them would wind up in the hands of private nonprofits. In fact, the company said Thursday that it made clear to the cities and parishes that received the gifts -- collectively valued at more than $1 million -- that they were for the exclusive use of public agencies or government units, such as police and fire departments. Dave Elshoff, a DaimlerChrysler spokesman, said those instructions were delivered, both...