Complex sentence: In the early 1920s he moved to London to represent Isotta-Fraschini and subsequently became the technical director of'L.A.P. Engineering' and the director of the firm manufacturing the Wilson preselector gearbox where his marketing skill persuaded Sunbeam Talbot Darracq and others of its merits.
Split into simpler sentences: In the early 1920s he moved to London to represent Isotta-Fraschini and subsequently became the technical director of'L.A.P. Engineering'. He then became director of the firm manufacturing the Wilson preselector gearbox where his marketing skill persuaded Sunbeam Talbot Darracq and others of its merits.