10-15 million, depending on the team (# of cars, employees, etc).
Yea that would be really low. A major sponsor now pays $10-$20 million a year. Most teams have 60 people/car (10 years ago they had 30 for 2 cars). Engineers now make $90,000 - $300,000/yr where ten years ago they didn't have engineers! NASCAB tried to save the teams money by limiting practice. Guess what Hendricks does now? They have so much time booked in the wind tunnel here in Indy it is almost impossible for other teams to get in. LOL
Hendricks does a good job and gets really good money for his sposorship. But this is how he does it. He tells Dupont if you give me x amount of sponsorship I will put your name on the car. Dupont says that is very high why should I do that. Hendricks says well if you give me x amount I willl use only Dupont paint in all my dealerships. Guess how much that amounts to for Dupont?

Win Win for both.
http://www.hendrickauto.com/dealer/dealer_results.asp?select_all=yes