Yes, you can bring your own beer into Daytona International Speedway as long as they are in the frontstretch seating areas. The cooler can hold up to 24-36 cans, have a single wall removable plastic liner, and can be packed with ice cubes or ice packs.
The general admission seating at Daytona International Speedway in Daytona Beach, FL are on the bottom few rows of the grandstands where you can get an up-close view of the fast-paced action on the track.