Leonardo da Vinci’s 1478 self-propelled cart is often considered an ancestor of the automobile.
Leonardo’s drawing shows a three-wheeled cart powered by tightly wound springs. When released, the springs would turn the wheels through a system of gears. The front wheel was connected to steering equipment, making the design more than a simple wagon pulled by an animal.
The cart was probably intended for theatrical effects or court pageants rather than transport. It could move without a visible driver, which would have made it useful as a stage device. The original drawing does not show every detail needed to construct a complete working vehicle, so later reconstructions have interpreted the mechanism.
A full-scale replica built in the early 21st century demonstrated that the concept could move under spring power. Leonardo’s cart was not a gasoline car and did not contain an engine in the modern sense. Its significance is that it combined stored mechanical energy, gearing, wheels, and steering in a compact self-moving machine.