At Teste & Moret of Lyon in 1896 he used a 2¼ horsepower de Dion engine to build a car he named La Mouche or The Fly.
To solve the cooling problems of high-speed air-cooled engines he designed the first water-cooled cylinder head and many were bought by de Dion Bouton.
[1] He left Sunbeam before the formation of the separate car company in 1904, taking up an appointment of general manager at Humber's Beeston, Nottinghamshire works.
In 1910 he was taken on by William Beardmore, 1st Baron Invernairn, businessman and shipbuilder, as manager of the Paisley works of his Arrol-Johnston Car Company Limited.
Pullinger and his large family settled in Swinlees farm, just outside Dalry, Ayrshire, where their eldest child Dorothée created a sketchbook of drawings and simple paintings of the area.
On retirement he lived at The Brae, La Route des Genets, in the parish of St Brelade, Jersey and described his recreations as farming and yachting.