Russell Clifford "Cliff" Durant (November 26, 1890 – October 31, 1937) was an American racecar driver. He was the son of William C. Durant, the founder of General Motors and Durant's first wife, Clara Pitt. Cliff Durant had four wives: Lena Pearl McFarland, Adelaide Pearl Frost, Lea Gapsky, and Charlotte Phillips. His second wife, Adelaide Pearl Frost (1885–1977), whom he married on September 1, 1911, was a singing star who later married WW1 fighting ace Eddie Rickenbacker.