Royal Motor Car Company was a Brass Era manufacturer of luxury automobiles in Cleveland, Ohio, in business from 1904 to 1911.

The Model O has a vertically mounted water-cooled straight-twin, situated at the front of the car and producing 16 hp (11.9 kW).

[2] Royal Tourists were known as big, luxurious and reliable cars and used the slogan "The Pink of Perfection” in early advertising.

[1][2] Robert Jardine had developed a six-cylinder motor for the Royal Tourist but the financial issues resulted in its cancellation.

A novel idea for 1909 Royal Tourist's was Its horn placed under the hood, with only the bulb for sounding it at the center of the steering wheel hub.