Barley Motor Car Co. was a manufacturer of luxury automobiles in Kalamazoo, Michigan, and Streator, Illinois.

[1] In 1913 Albert C. Barley bought the assets of the Streator Motor Car Company, which entered receivership in 1911.

Streator was the successor of the Erie Motor Carriage Company and had been manufacturing the Halladay automobile since 1905.

"[3] In 1918 the Model C6 succeeded the Six, with a 54-hp (40 kW) Continental 12XD engine and available in eight body styles from $2,200 to $4,900, equivalent to $99,258 in 2023.Roamer offered custom colors to be chosen by the buyer.

[1] In 1924 a reorganization resulted in the formation of Roamer Motor Car Company, incorporated at Toronto, Ontario and headed by George P. Wigginton.

[2][3] "Assembled cars" in the luxury market were declining in sales, and the company stopped manufacturing in early 1929.

The first Barley Model 6-50 debuted in September offering torpedoes and sedans with Continental 50hp six-cylinder engines and a 118" wheelbase.

[2][1] The Barley was not successful and it was rebranded as the Pennant, outfitted with a Buda 4-cylinder engine and targeted at the taxicab market.