Richard Childress, Rick Hendrick and Mark Martin – all of whom will be inducted into the NASCAR Hall of Fame next year – will serve as grand marshals for the Bojangles’ Southern 500 at Darlington Raceway on Sunday, September 4th.  They’ll give the command to start engines for the race, which will again feature throwback paint schemes honoring NASCAR’s history and heritage.  Childress and Hendrick are two of the most successful owners in Cup Series history.  Childress’ teams have posted 105 victories since 1969 and won twelve championships across NASCAR’s three national series – second all-time.  Richard Childress Racing is the first organization to win titles in all three national series.  Much of his success came with driver Dale Earnhardt, who won sixty-seven races for R-C-R including eight at Darlington … Hendrick, who founded Hendrick Motorsports in 1984, owns an all-time-record eleven Cup Series championships among car owners: six with Jimmie Johnson, four with Jeff Gordon and one with Terry Labonte.  His drivers have won 242 Cup Series races with one thousand top-five finishes.  Hendrick’s teams have fourteen Cup Series wins at Darlington Raceway, including seven with Gordon.  Johnson’s victory there in 2012 gave the organization its two hundredth win … Martin, in a thirty-one-year career, won forty Cup Series races including the 1993 and 2009 Southern 500s.  He also won eight XFINITY races at Darlington, the most in series history.