Automakers are on track for their best U.S. sales year since 2006, but the growth of long-term loans, many to buyers with dicey credit scores, and a surge of leased cars that will return to dealers by 2017, Risks grow amid boom year for auto sales Automakers are on track for their best U.S. sales year since 2006, but the growth of long-term loans, many to buyers with dicey credit scores, and a surge of leased cars that will return to dealers by 2017, Check out this story on USATODAY.com: http://usat.ly/1ufZVIq A 2015 Chevrolet Silverado 2500 4WD LTZ Crew Cab pickup truck on sale last month at the Miami Lakes AutoMall.