The Simplo was an American high wheeler automobile manufactured from 1908 until 1909 by the Cook Motor Vehicle Company in St. Louis, Missouri.

[1] Cook Motor Vehicle Company of St. Louis advertised the Simplo as The biggest automobile value in America.

Several variations were offered; air or water-cooled 2-cylinder engines and both solid or pneumatic tires.

The Simplo featured a friction transmission, double chain drive and right-hand wheel steering on the runabout, priced at $600, equivalent to $12,015 in 2023.

[1][2][3] In 1909, roadster and surrey models were added, but after a year of trying, the Cook Motor Vehicle Company decided to become a multi-marque automobile dealership.