into flames. Witnesses at the track claimed they heard Roberts screaming, "Ned, help me", from inside his burning car after the wreck. Jarrett rushed to save Roberts as his car was engulfed by the flames. Roberts suffered second-and third-degree burns over eighty percent of his body and was airlifted to a hospital in critical condition. Although it was thought that Roberts had an allergic reaction to flame-retardant chemicals, he was secretly an asthmatic, and the chemicals affected his breathing. Roberts was able to survive for several weeks, and it appeared he might pull through, but he took a turn for the worse on June 30, 1964. He contracted pneumonia and sepsis and had slipped into a coma by the next day. Roberts died from his burns on July 2, 1964. Roberts' death, as well as the deaths of Eddie Sachs and Dave MacDonald at the Indianapolis 500, six days after Roberts' crash, led to an increase in research on fire-retardant uniforms. It also led to the development of the Firestone RaceSafe fuel cell. Modern race cars use a foam-filled fuel cell to prevent fuel spillage of the magnitude of Roberts car. Also, fully fire-retardant coveralls would be phased in, leading to mandatory Nomex racing suits. Roberts had lost his close friend, Joe Weatherly, in January 1964 at the Motor Trend 500, at Riverside, California. Many sources reported that Roberts was planning to retire since he had taken a public relations position at the Falstaff Brewing Company and that the race in which he was killed was to be one of the final races of his career. Legacy Despite having his career cut short and having never won a Grand National title, Roberts was named one of NASCAR's 50 Greatest Drivers. Other career accolades he won include induction into the International Motorsports Hall of Fame in 1990, and the Motorsports Hall of Fame of America in 1995. In 2000, the city of Concord, North Carolina, named a street near Charlotte Motor Speedway in his honor. After Roberts' death, NASCAR mandated that all drivers wear flame retardant coveralls while on track. They also instituted the five-point safety harness, and the special, contoured driver's seat, as requirements for all NASCAR vehicles. The "Fireball Run", named for Roberts, was started in 2007. This streaming TV "adventurally" series, headquartered at Universal Studios in Florida, covers 40 teams as they compete in an 8-day, 2000 mile