Apperson

The company was founded by the brothers Edgar and Elmer Apperson shortly after they left Haynes-Apperson; for a time they continued to use a FR layout-mounted flat-twin engine, following it with a horizontal four.

[1] The Apperson offered electric lights, a novelty for the time, and used a modern cellular radiator.

The next year the first of the famed Jackrabbit speedsters rolled off the line; this was a 60 hp (45 kW) that sold for $5000.

The term "Roadplane" did not refer to a specific model but was a marketing concept devised by Elmer Apperson that was applied to the "Chummy Roadster" and the "Touring" car.

A sedan proprietary with six cylinders of 3.2 L (3243 cc/197 in3) appeared in 1923, and a Lycoming eight-cylinder was offered beginning in 1924.