In 1978, John Searcy retired and left the company under the leadership of President and Chairman Norm Miller. Norm Miller continued the company’s expansion so that by the 1980s Interstate Battery had distributorships in all 50 US states and Canada. During that time they also created the Interstate Batteries Great American Race, which for 13 years took vintage car owners and their vehicles on a two-week, cross-country rally. This led to other marketing schemes such as advertising on the Paul Harvey news radio show, running national TV commercials, and sponsoring champion.