The veterans'' building in Ludlow was pretty much filled up with great cars and trucks recently for this year's version of Rollin' On the River. That full lot meant that a good chunk of money was being raised to help support the organizations involved and the work that they do. Among the vehicles on hand to contribute was a Pontiac Firebird convertible, a Chevrolet Corvette, another Firebird convertible, a 1968 Chevy Camaro, a 1966 Chevy Chevelle, a GMC Custom pickup truck, and a Dodge Adventurer pickup.