In 1935 Jaguar continued its policy of building new models out of Standard components, using parts from the Standard Twelve to create the new 1½-litre saloon with a 1608cc sv engine (later a 1776cc ohv unit). At the same time the 2½-litre saloon was also introduced using the 2664cc Standard Twenty engine but with a Jaguar-developed head that gave 105bhp. The 125bhp 3½-litre followed in 1937, and all these cars were named 'SS Jaguar' + the engine size, but branded simply 'Jaguar' when relaunched in 1946. In 1948 these cars were replaced by the Jaguar MkV range, and retrospectively termed 'MkIV'. The Jaguar MkV kept the 2½-litre and 3½-litre engines from its predecessor, but fitted them into a new independent suspension chassis that carried onto until the middle 1960s. The 'leaping cat' radiator ornament was first fitted to the MkV as an option. Most MkIV and MkV were bodied as standard steel saloons with an optional drophead coupe body, but coachbuilt versions were also sold.