 Two of the most significant 'special' cars developed by Volkswagen while under the control of the British were the 'Radclyffe Roadster', and a four-seater convertible, both custom-built by Rudolph Ringel.The Radclyffe was a two-seater roadster that was the transport of Colonel Charles Radclyffe over the summer months of 1946.The four-seater convertible was Ivan Hirst's personal transport.