Complex sentence: Motor car enthusiasts including Coventry manufacturer Harry J. Lawson--who had purchased the British Daimler engine patents and later formed the Daimler Motor Company--advocated for the removal of restrictions on the motorcar.
Split into simpler sentences: Motor car enthusiasts including Coventry manufacturer Harry J. Lawson, who had purchased the British Daimler engine patents and later formed the Daimler Motor Company. He advocated for the removal of restrictions on the motorcar.