J. Walter Christie was an American engineer and inventor, best known for his work in the field of automotive design. He is particularly recognized for developing the Christie suspension system, which allowed for better handling and stability in vehicles. His innovations contributed to the advancement of military and commercial vehicles in the early 20th century. In addition to his suspension system, Christie was also involved in the design of tanks during World War I. His designs emphasized speed and maneuverability, influencing future armored vehicle development. Christie's contributions have left a lasting impact on automotive engineering and military vehicle design.