Bill SimpsonE. J. "Bill" Simpson (March 14, 1940 – December 16, 2019) was an American racecar driver, but is best known as a pioneer in the racing safety business with his company Simpson Performance Products. He left Simpson Performance in a controversy surrounding Dale Earnhardt's death and started Impact! Racing.
He was inducted into the Motorsports Hall of Fame of America in 2003. Provided by Wikipedia