| National Association for Stock Car Auto Racing |
Nascar was founded by William H.G. France in 1948 to organize and promote stock-car racing. The tracks at that time had different rules and facilities, and Bill France legitimized a sport that was, at best, an unorganized hobby. He also founded the International Speedway Corporation. The NASCAR Championship is the championship held in the NASCAR stock car racing series. Since 1972, the NASCAR Championship is also known as the Winston Cup. Before that, it was named the Grand National. The series became the Nextel Cup in 2004.