Wolseley inbtroduced its 'Super Sixes' in 1935 in its 'Series II' cars, although this was in effect the Morrisification of the Wolseley brand with the Wolseley overhead cam engines being substituted for Morris units. The Morris 25 engine, a unit that was used in Morris-Commercial trucks lent itself for use as the 16hp (2062cc), 21hp (2916cc) and 25hp (3485cc). The 21 and 25 both sat on a 10ft 1½inch wheelbase, although there was also a LWB 25. However the Wolseley cars got overhead valve versions of the Morris engines, and the cars were better trimmed and fitted than their Morris siblings. The Wolseley 18 appeared as the 18/80 in 1937 with a 2322cc ohv six-cylinder engine in the chassis of the 14/56, and its twin carbs gave it similar power to the similar MG SA. In 1937 the Series III cars were announced for the 12, 16, 21 and 25, though not yet for the 18/80. New Steel bodies were given to the cars, more upright than the 'slanted' Series II and different to the Morris Series III. At the 1938 Motor Show the new Series III cars were the 14/60, 16/65 and 18/85 on an 8ft 8inch wheelbase (the same as the Wolseley 25 drophead), and the engines were carried on but gave better performance. When the war came, the popularity of the 18/85 amongst the military saw it as the last Wolseley to halt production, and the first to restart in 1945.