Ancillary costs can be expensive also. In addition to owning and operating Hallett Raceway, the family owns Stephens Brothers Racing and their high performance diving school. Here they house and maintain race cars for owners living outside Oklahoma, but wanting to race at Hallett or at other tracks in the region, and hold driving schools for people interested in learning how to drive race cars. The cars are occasionally leased to race in events at Hallett. The school enrolls about five students per class and is offered several times throughout the year.
Students learn racing safety such as the meaning of the different flags, and how to pass safely.
They also receive instruction on proper braking techniques, and the cars' ability to stop. The school offers both time in the classroom and in the car on the track. Students drive actual race cars, first in lead and follow sessions with instructors, and then in laps around the track. The school is from one to five days, depending on the desired experience level of the student. Stephens Brothers also houses and maintain a few go karts.