The October 24, 2011 edition of Transport Topics reported that U.S. purchases of Class 8 trucks jumped 69.5% to 15,937 units in September versus September 2010 results, as reported by WardsAuto.com.

According to this report, Total Class 8 sales through September 2011 were 115,975 units representing a 50.5% increase over the 77,082 units sold over the same 9 month period in 2010.   Full year 2010 sales totaled 107,152 units.
 
The report indicated that analysts and truck dealers were mixed regarding whether the growth was the result of fleets expanding their size or replacing aged units.

Daimler Trucks North America sold the most heavy-duty trucks in September, 5,367 of its Freightliner brand and 304 Western Stars, Ward’s said.