Mitsubishi Motors Corp. said Wednesday it may have falsified data for the fuel efficiency tests of more vehicle models, including the nine models sold currently and in the past on top of the four already identified

While manipulated data may have been used, the Tokyo-based automaker said it has conducted proper tests on the nine models, including the RVR model, and that the actual fuel efficiency figures are not so different from the ones already advertised. Mitsubishi plans continue selling them.

As soon as the scandal broke last month, Mitsubishi stopped manufacturing and selling the affected four minicars: the eK Wagon, eK Space, Dayz and Dayz Roox, saying that the fuel efficiency gap was up to 10 percent.