Published: Jun 17, 2010 8:50 PM EDT
Updated: Jun 17, 2010 4:08 PM EDT

WASHINGTON (AP) - U.S. automakers have surpassed imported brands for the first time on a survey of the quality of new cars.

J.D. Power and Associates says that owners of domestic cars reported fewer problems on average during the first 90 days of ownership than foreign cars and trucks.

It's the first time that has happened in the 24 years the industry research group has conducted the annual quality study.

J.D. Power says Ford showed some of the biggest gains in quality. Porsche was the top scorer among individual brands.