There is a coupon book that you can order through Daytonas website for tourism. I got mine lickety split after ordering it a few months ago, but have since lost it. I am pretty sure there are some in there. There is everything in that coupon book lol.
We went last year and it was a blast. Make sure you do the infield tour. Its included in the admission fee. Its amazing to stand on pit road at Daytona.
Get a good look at Newmans car for me.