Chrysler Australia launched the first generation in April 1979 as the MA series Chrysler D-50. Initially, two pickup versions were sold, the Commercial with the 1.6-litre "Saturn" (4G32) engine and the higher specification Recreational with the 2.0-litre "Astron" (4G52) engine. Both Commercials and Recreationals received a floor-shifted 4-speed manual, with a taller axle ratio for the Recreational. Commercials were specified with heavy duty suspension rated for payloads; the Recreational version carries a load. The reason for the halved payload was due to the sedan-type suspension of softer springs and more supple shock absorbers. The Recreational model also featured radial ply tires, electronic ignition, bucket seats, pile carpet, radio, floor console, sports steering wheel and an adjustable steering column as standard. An optional sports stripe package was also available. Options included a weather-tight, fibreglass canopy with foam rubber mattress. This was manufactured by Challenge Industries and incorporated sliding side windows. Later in 1979, a cab chassis body variant of the Commercial was released. In March 1980, the D-50 was renamed Chrysler L200 Express to form linkage with the newly released L300 Express vans. In October 1980, the Chrysler labelling made way for Mitsubishi badges following the establishment of Mitsubishi Motors Australia from Chrysler Australia's old operations. In June 1981, Mitsubishi released 4WD versions of the pickup and cab chassis, both with the 2.0-litre motor. Free-wheeling hubs to reduce noise and fuel use in 2WD mode were optional. In late 1981, the 2.0-litre with five-speed manual was made optional for the 2WD one-tonne suspension models.