J. R. Heffner is an American professional dirt and asphalt stock car driver. He currently competes in various dirt racing events.

DGM Racing is a Canadian professional stock car racing team that currently competes in the NASCAR Xfinity Series. The team is owned by Mario Gosselin. The team is now located in Lake Wales, Florida,The team formerly fielded a Truck Series team and an ARCA team. Gosselin won two ARCA races with the team. The team currently fields two Chevrolet Camaros, the No. 91 full-time for Kyle Weatherman and the No. 92 full-time for multiple drivers. The team also fields the No. 36 Chevrolet Camaro part-time for Natalie Decker.