The design of this was done by a consultant Thomas Ashcroft (known as Tim) with the brief of producing "Britain's finest 1100 cc engine".

The engine was connected to a four-speed preselector gearbox with right-hand change lever and the Girling system rod operated brakes had large 13 in (330 mm) drums.

[3] Other suppliers of coachwork included John Charles, Maltby and E J Newns who made around 12, subsequently known as Eagles.

In 1935 the Lagonda company failed and was bought by Alan Good who reformed it as LG Motors (Staines) Ltd. As part of the general upheaval the rights to make the Rapier were sold to a new company Rapier Cars Ltd of Hammersmith Road, London, a premises previously used by Lagonda as their London service centre.

The intention was now to sell the car complete with body and a design was produced by Ranalah.