The University of California spent more than $90,000 last year to shuttle members of the governing Board of Regents around town in a caravan of chauffeur-driven luxury cars during five meetings in the Bay Area. The cost to taxpayers was roughly 10 times that of hailing the regents a cab, a Chronicle analysis found. "The number is a bit flabbergasting," said Patrick Callan, president of the nonprofit National Center for Public Policy and Higher Education. ... --snip-- Since November, the 10-campus UC system has been swept up in a controversy over tens of millions of dollars in hidden perks and...