An owner-driver in NASCAR is a NASCAR driver who owns the car they are driving. The practice has been established since the beginning of NASCAR in 1949. However, owner-drivers are almost nonexistent today in the Monster Energy NASCAR Cup Series, primarily due to the expense and responsibilities involved, essentially having two jobs in one. However, there are many owner-driver teams in the lower tier Xfinity Series and Gander Outdoors Truck Series. Owner-driver is not to be confused with a driver who owns a separate team, such as Dale Earnhardt, who fielded his own team but still drove for RCR.