MUNICH (Reuters) - BMW Chief Executive Harald Krueger said he expected Chinese authorities to soon clarify the size of a proposed quota for electric cars as the German carmaker overhauls its production system to make more zero-emission vehicles.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=rHJ28zaJLJg:ytyOwcxyxA4:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=rHJ28zaJLJg:ytyOwcxyxA4:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=rHJ28zaJLJg:ytyOwcxyxA4:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=rHJ28zaJLJg:ytyOwcxyxA4:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=rHJ28zaJLJg:ytyOwcxyxA4:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/rHJ28zaJLJg" height="1" width="1" alt="" />