The Federal Trade Commission building is seen in Washington on in this March 4, 2012, file photo. The Federal Trade Commission is investigating whether car dealers across the United States ganged up ... more 
The Federal Trade Commission building is seen in Washington on in this March 4, 2012, file photo. The Federal Trade Commission is investigating whether car dealers across the United States ganged up against TrueCar, agreeing among themselves not to do business with the California-based Internet company because it was driving down prices, said people who have received letters from the FTC including TrueCar Inc chief executive Scott Painter. REUTERS/Gary Cameron/Files (UNITED STATES - Tags: LAW TRANSPORT BUSINESS) less 
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Reuters | Photo By GARY CAMERON / REUTERS
Tue, Dec 17, 2013 8:59 AM EST