Billionaire financier and Berkshire Hathaway Chief Executive Warren Buffett (2nd R), Microsoft founder Bill Gates (R), Berkshire Hathaway Vice Chairman Charlie Munger (2nd L) and BYD Chairman and President Wang Chuanfu (L) gesture at the national launch ceremony for the BYD M6 vehicle in Beijing on Sept 29, 2010. Chinese battery and car maker BYD, backed by Buffett, launched its first premium multi-purpose vehicle (MPV) in Beijing on Sept 29 to tap rising demand in the world's biggest auto market. [Photo / Reuters]