From Mitsipedia

The Lonsdale engine manufacturing plant was first opened by Chrysler in 1966. It is located south of Adelaide, South Australia. The plant was closed in October 2005 as the Magna's replacement - the 380 uses an engine imported from Japan.

The Lonsdale plant was opened on 3 November 1967 following a $31 million investment by Chrysler.

The first Mitsubishi engine to be produced at the plant was the Astron in 1977 under the control of Chrysler[1]. In 1980, the plant was taken over by Mitsubishi as Chrysler wound up it's operations in Australia. Since then the plant has produced Astron, Astron II, Saturn and 6G7x V6 engines.