Squire designed and built a fine rigid chassis offered in two lengths for two or four seat versions with attractive bodywork by Vanden Plas.

[2] Squire himself went on to join Lagonda and was working for the Bristol Aeroplane Company when killed in an air raid in 1940.

Through Benjamin Bowden and John Allen's design company, contact was made with Donald Healey, who recommended using a souped up Riley Motor engine, as he had employed in the Healey-Abbott· Suspension and modified frame from the Riley stable provided the back-bone for what was to be an interesting but doomed venture.

[3] 180 bhp from the heavily modified engine was forecast, coupled to a fairly advanced body, suggesting that a 135 mph maximum speed was achievable.

Zethrin did not have the technical expertise of Adrian Squire, and failed to ensure sufficient industry interest in what seemed a flight of fancy, in an era of austerity.