The Regal was a United States automobile produced by the Regal Motor Car Company of Detroit, Michigan from 1907 to 1918 . In addition to American sales, the cars were exported to Britain as the Seabrook-RMC. In 1916, the touring car sold for US$650.
An unrelated automobile was produced in Paris, France from 1903-1904.
An unrelated automobile was produced in Berlin, Ontario from 1915-1917. The company was backed by Henry Nyberg.