I've been working with Bill Glidden on sponsors. We are thinking out of the box and going after non automotive businesses. After spending time with some of my sponsors I saw that they are bombarded daily with racers wanting $$$. Thats also why I started YWN 2+ years ago to get Doorcar Racing coverage.
If you want to see a model of success take a look at
www.RamRacing.us and see what a good website and video coverage of their events has done for them in 3 years. LOOK at who is on board with them! Its not rocket science sponsors want to see their investment working.