This paper outlines the characteristics of current auto investment fever and analyzes its forming reasons.This paper points out,it lacks science basis that some people predicted China's auto sale would exceed the U.S.and leap to first place in the world within the next 20 years (even shorter),this opinion may mislead the investment of some enterprises. Depending on China's objective condition,raises positive and practical aims of car popularization for building well-off society in an all-round way.