 There was the added option of a 2.3L diesel unit sourced from Peugeot and a 5 speed gearbox became available.The Sierra divided opinion at launch over its space-age styling which also became known as the "jellymould".However, Ford dealers still had high stock of the Cortina to shift and sales of it still continued into 1983 but the Sierra still managed second place in the UK's top-selling new cars for that year.