NAPA looking? hearing that NAPA Auto Parts is looking at options for their sponsorship in the Nextel Cup Series. NAPA has been the sponsor for Michael Waltrip in the Cup Series since 2001, first with the #15 DEI Chevy, then since 2006 on the #55 car. Supposedly NAPA is talking to Richard Childress Racing as a possible replacement sponsor for Cingular, should AT&T not win its lawsuit against NASCAR to have the AT&T decals put on the #31 Chevy AND with Roush Fenway Racing as a sponsor for the #16 Ford Greg Biffle drives. Current sponsor Ameriquest has opted out of the sponsorship after the 2007 season.