The word "carload" refers to the amount of goods or people that can fit into a car or vehicle. It is a measurement used to determine the capacity or quantity that a car can transport. Full definition
On April 1, 1994, his bankers, accompanied by carloads of armed federal marshals and sheriff's deputies, swept into the site with a restraining order. (discovermagazine.com)
Five people are confirmed dead and 40 people remain missing in the small hamlet of Lac - Megantic, Quebec, where a train with 73 carloads full of Bakken shale oil derailed explosively, incinerating 30 buildings on Saturday. (desmogblog.com)
The cost is $ 10 per carload (or what ever you can donate) at the gate. (sportstarsmag.com)