That’s the amount of dirt Bristol Motor Speedway placed around its .533-mile concrete oval to turn it into a dirt track for the first time in two decades. A better but maybe more difficult ...

When transitioning from asphalt to dirt tracks there are differences and challenges that must be addressed in driving style and car setup - Circle Track Magazine ...

Drivers’ opinions range from no dirt racing for the Cup Series, to moving it to a full-time dirt track such as Eldora Speedway, to Bristol produces good racing on dirt and concrete.

Cushion: A dirt edge formed when multiple cars run on the top groove of the race track. The “cushion” will move up as cars run a higher line on the track throughout the event.