Internet most heavily influences car sales, new research from Polk / AutoTrader shows by Peter M. Zollman in Automotive 04 Feb 2011 Two tidbits of news from AutoTrader.com — new research that shows car buyers spend 18 to 19 hours online before they make a purchase, and a record for unique users in January at AutoTrader.com. The two news releases come on the eve of the opening of the National Auto Dealers Association convention, which starts tomorrow in San Francisco. Research among more than 4,000 U.S. consumers showed tha This article is only available to AIM Group clients. Please subscribe now or log in to view. Share Peter M. Zollman Peter M. Zollman brings more than 35 years of media experience to his role as founding principal of the AIM Group / Classified Intelligence Report. He has worked with a wide range of media companies, dot-coms, technology providers and start-ups to develop and expand successful interactive-media services. He is based in Altamonte Springs, Fla., near Orlando.