Mitsubishi cheated fuel economy tests since 1991, report says - Roadshow

The company confirmed that over half a million cars were tested using methods other than those required by Japanese law, in order to make those cars appear more fuel efficient than they actually were. Mitsubishi noted that affected cars were limited to sale in Japan.

Mitsubishi, in a statement released today, said it's establishing a committee of independent investigators to "uncover the facts" around the company's cheating of fuel tests. The panel consists of three attoeys who, Mitsubishi claims, "have no conflicts of interest," and says it's also considering appointing technical experts to aid the investigation. The committee will investigate for three months, and Mitsubishi says it will disclose the verdict "in a timely manner."

Mitsubishi did not immediately respond to a request for comment.