America's first automobile was built by Charles and Frank Duryea, two bicycle makers. Charles spotted a gasoline engine at the 1886 Ohio State Fair and became convinced that an engine-driven carriage could be built. The two brothers designed and built the car together, working in a rented loft in Springfield, Massachusetts. After two years of tinkering, Charles and Frank Duryea showed off their home invention on the streets of Springfield, the first successful run of an automobile in the U.S.
They were the first in the country to manufacture cars for sale, and had built 13 cars by 1896.