Time Gallops On (1952)

The village blacksmith, standing under the chestnut tree, is appalled when he sees his first horseless carriage. He stays appalled and becomes dismayed when the horseless carriages increase and his business dwindles to a standstill. He then decides to build a robot horse. He does so, after many years, and challenges one of the famous auto-racers of the day to race against his horse.