Newswire brought to you by Audi Q1 oper profit up 28 pct, FY results to rise Apr 28, 2008 FRANKFURT, April 28 (Reuters) - Audi, the luxury unit of Volkswagen , reported on Monday first-quarter operating profit rose 28.2 percent to 514 million euros ($805 million) and stuck to its forecast for a full-year increase. Load More