Samsung sponsored the race from 2002 to 2012, while RadioShack was previously a co-sponsor. The joint sponsorship was grandfathered in 2003 by NASCAR's grandfather clause when Nextel became a NASCAR sponsor, as they banned rival wireless sponsorships (Nextel used Motorola exclusively); the ban was lifted after the 2005 merger of Sprint and Nextel because Sprint is sold at RadioShack, and Sprint offers Samsung products.
