The 1984 NASCAR Winston Cup Season began on Sunday February 19 and ended on Sunday November 18. Terry Labonte was crowned champion at the end of the season. 1984 (MCMLXXXIV) was a leap year starting on Sunday of the Gregorian calendar. ... The National Association for Stock Car Auto Racing (NASCAR) is the largest sanctioning body of motorsports in the United States. ... The NASCAR Championship is the championship held in NASCARs top stock car racing series. ... February 19 is the 50th day of the year in the Gregorian Calendar. ... November 18 is the 322nd day of the year (323rd in leap years) in the Gregorian Calendar. ... Terry Labonte, right, shows the frame of a race car in 2005, courtesy of the U.S. Coast Guard. ...