Nielsen Throws Car Maker's Media Audit a Curve

There is a new wrinkle in Hyundai Motor Co.’s review of independent media-audit firms: Nielsen Media Research will not let the firms use its national broadcast data because Hyun dai is not a Nielsen client.

The carmaker launched a search last month [Adweek, May 20] for an audit firm to oversee its combined $400 million Hyundai factory and Kia factory and dealer media buying business in the U.S. That account was awarded to Aegis Group’s Carat Los Angeles early this year.