Ongoing difficulties with the Great Horseless Carriage Company and the British Motor Syndicate caused Lawson to resign from Daimler's board on 7 October 1897.
In mid-1900, Simms, as a director of DMG, proposed a union between the Daimler Motor Company in Coventry and DMG in Cannstatt, but the reorganised company was not interested in the merger and turned the offer down.