Japan car manufacturer Mitsubishi Motors has admitted to falsifying fuel economy data on 600,00 vehicles sold in Japan after Nissan found inconsistencies.<br />Normal pressure figures were inflated to bolster milage rates.<br />The claim has caused a trickle-down effect, dropping shares of Mitsubishi down in Japan by 15 percent.<br />The inaccurate tests involved 157,000 of their own cars and 468,000 built for Nissan.<br />Mitsubishi is Japan's sixth-largest car maker and they sold more than one million cars last year.
