It produced a wide variety of locomotives and railcars, but failed as a business and became a subsidiary of Baguley Cars Ltd in 1912.

[5] McEwan Pratt was noted for its production of railcars,[6] and by 1913 were supplying both finished cars and powered chassis to various government railways.

[7] In 1908, McEwan Pratt were producing the "Dando-Murray" paraffin locomotive, which was sold by London agents Duke & Ockenden.

[8] McEwan Pratt Ltd were wound up in March 1912, Baguley Cars Ltd approached the liquidator and purchased the Wickford works, stock, order book and patents.

Baguley set up a new subsidiary called McEwan Pratt (1912) Ltd. which resumed production at the Wickford works to fulfil the remaining orders.