Mazda has signed on as the main sponsor of the 24 year old event that takes place July 8th - 10th. Basically 3 races happenign - The Formula Atlantic series , Star Mazda and the MX-5 series. This year there will be some drifting as well

http://www.oregonlive.com/sports/oregonian/index.ssf?/base/sports/1178767516105360.xml&coll=7

Sweet! Great deal for PIR and Mazda!

Mazda is one of the main sponsor's for Champ car, Champ Car Atlanta, ALMS, etc. They are technically one of the "main sponsors" of the races in all of those series. In this particular case they are the "Title Sponsor"