The yearly tradition raises money for the local chapter of Make-a-Wish, to help children with critical illnesses Author: Casandra Aminto (FOX43) Updated: 10:38 PM EDT May 9, 2021 MANHEIM, Pa. — A little bit of unpredictable weather couldn't stop 100 big rigs from making their way out of Manheim PA Auto Auction for the 32nd annual Mother's Day Truck Convoy. The world famous event raises money for Make-a-Wish Philadelphia, Delaware & Susquehanna Valley. Organizers say funds raised from the annual event typical help grant over 75% of wishes in the South Central Pennsylvania area. In order to continue to ensure the health and safety of all children part of the Make-a-Wish program, this was the second year they did not participate in person in the convoy because of the pandemic.