The first NASCAR "Strictly Stock" race ever was held at Charlotte Speedway (not the Charlotte Motor Speedway) on June 19, 1949 -- a race won by Jim Roper after Glenn Dunnaway was disqualified after the discovery of his altered rear springs. Initially, the cars were known as the "Strictly Stock Division" and raced with virtually no modifications on the factory models. This division was renamed "Grand National" beginning in the 1950 season. However, over a period of about a dozen years, modifications for both safety and performance were allowed and, by the mid-1960s, the vehicles were purpose-built race cars with a stock-appearing body.
One of the tracks used in the inaugural season is still on today's premier circuit: Martinsville Speedway. Another old track which is still in use is Darlington Raceway, which opened in 1950. (The oldest track on today's NEXTEL Cup circuit is the Indianapolis Motor Speedway which dates back to 1909; however, the first Brickyard 400 did not take place until 1994.)
Most races were on half-mile to one-mile (800 to 1600 m) oval tracks. However, the first "superspeedway" was built in Darlington, South Carolina, in 1950. This track, at 1.366 miles (2.22 km), was wider, faster and higher-banked than the racers had seen. Darlington was the premiere event of the series until 1959. Daytona International Speedway, a 2.5-mile (4 km) high-banked track, opened in 1959, and became the icon of the sport. The track was built on a swamp, so France took a huge risk in building the track.
The first NASCAR competition held outside of the U.S. was in Canada, where on July 1, 1952, Buddy Shuman won a 200-lap race on a half-mile (800 m) dirt track in Stamford Park, Ontario, near Niagara Falls.