The new 17hp model was introduced to the press on September 28th 1934, whilst it was a largely development of the previous 15hp model it had a new overhead valve engine of 2169cc. and was available on either a short or long chassis variant. In keeping with Armstrong Siddeley Motors policy, Wilson Epicycle self-changing type and was independently suspended within the chassis of the

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The Newton clutch was introduced at the 1936 Motor Show, this centrifugal device enabled smoother gear changes, especially from first to second.