[1] In November 1919 the White family sold their share to steady customers, Dennis Brothers Limited of Guildford.

Poppe remained with the business until 1923 then joined the Rover Company as chief engineer.

[6] Within twelve months Rover had added a 2.4-litre 16/50 to their range, a sister car with a larger engine.

In response, Poppe designed another car with a 2-litre six-cylinder engine but similar results.

[11] In the same period Gunnar Poppe was works manager for Sunbeam-Talbot, having joined the Rootes Group after ten years (1923 to 1932) with Austin.