Chrysler Sigma

Chrysler Sigma
1977–1980 Chrysler Sigma (GE) SE sedan
Overview
Manufacturer	Chrysler Australia Mitsubishi Motors Australia
Also called	Mitsubishi Galant Mitsubishi Sigma Lonsdale YD41/YD45
Production	1977–1980 (Chrysler) 1980–1987 (Mitsubishi)
Assembly	Australia: Tonsley Park, South Australia
Body and chassis
Class	Mid-size car
Body style	4-door sedan 5-door station wagon
Layout	Front-engine, rear-wheel-drive
Powertrain
Engine	1.6 L Saturn (4G32) I4 (petrol) 1.85 L Astron (4G51) I4 (petrol) 2.0 L Astron (4G52) I4 (petrol) 2.0 L Astron (4G52T) I4-T (petrol) 2.6 L Astron (4G54) I4 (petrol)
Transmission	4-speed manual 5-speed manual 4-speed automatic
Chronology
Predecessor	Chrysler Galant
Successor	Mitsubishi Magna

The Chrysler Sigma is a version of the Mitsubishi Galant automobile that was built by Chrysler Australia in Adelaide from 1977. When Mitsubishi Motors Australia (MMAL) took over Chrysler Australia's manufacturing facilities in 1980, they renamed the vehicle the Mitsubishi Sigma. The range was progressively discontinued and replaced by the Mitsubishi Magna, starting with the sedan in 1985 and the wagon in 1987.

Chrysler launched the GE series Sigma in October 1977 to replace the outgoing GD Galant. Assembly occurred at the Tonsley Park, Adelaide plant.

The GE series Sigma was the first to introduce the Australian market to the Astron engine range. The 1.6-litre Saturn engine with four-speed manual transmission was also available in the base model, badged Sigma Galant. The Saturn engine was good for 56 kW (75 hp) of power and 117 N·m (86 lb·ft) of torque. The mid-range model, the Sigma GL, came standard with the 1.85-litre Astron and four-speed manual, providing 60 kW (80 hp) and 145 N·m (107 lb·ft). Both Galant and GL had an upgrade option to the 2.0-litre Astron engine—standard with four-speed manual or optional five-speed manual or three-speed automatic. Outputs for the 2.0-litre were 64 kW (86 hp) and 145 N·m (107 lb·ft). The top-line model, the Sigma SE, offered the 2.0-litre and five-speed standard—automatic remained an option. The Astron engines were initially imported, with the Lonsdale, South Australia engine plant producing the Astron from October 1979.

Sigma SE offered equipment including five-position, reclining rear seats. An interior boot lid release, roof console (incorporating dome lamp, map reading lamp, seat belt and door ajar warning lamps), steel belt radial ply tyres, laminated windscreen, distinctive grille, smoked glass on all instrument dials, front seat back pockets, and Ivanhoe cloth trim were also standard with the SE (with leather optional). The SE was further distinguished by its body-coloured hubcaps with silver trim.