I get my redneck on yearly at multiple tracks. The Daytona 500 is a great race but I prefer the Coca Cola 400 in the summer at Daytona. If you have disabled parking, it is easy in/easy out on Speedway Blvd and free. If not,there is a lot behind the airport (Turn right off Speedway Blvd toward the airport just past the track, then left at the first light. Make the 2nd right and you will see them) that the Boy Scouts run, parking for $20 and not a far walk to the track. It is past Turn 4 so if you are sitting past the start finish line, it can get kinda far.
Get there early to check out the midway outside the track and to walk inside the track. Each car company has some cool displays to view.
You can bring in all the cans of alcohol/bottled water/food you like in a soft cooler. Make sure its a soft cooler and there is no glass. This is the best part of NASCAR IMHO. Also, get the racing electronics scanner and headset for the race. Fan Vision is good but over priced. I own both. Listen to MRN (I believe it is channel 69). Those announcers during commercial breaks are hysterical! If you dont rent the headsets, be sure to have ear plugs. it is LOUD!
The best is to hear and feel the rumble of all 40 cars flying by you for the first time at a race. There is nothing like your first time!