May 9, 1982 is when the fourth generation model appeared (KR), also introducing the non-commercial Sambar Try (KT).
The suspension was upgraded to a four-wheel independent layout with MacPherson struts for the front wheels.
The wheel size increased from 10 inches to 12 inches, thereby accommodating larger drum brakes used at all four wheels.
The 4WD was available with a dual-range transmission.

While the home market Sambar came equipped with the 544 cc, 2-cylinder 21 kW (29 PS) EK23 engine, export versions (known as Subaru 700) received an enlarged 665 cc version of the same, producing 23 kW (31 PS).
LHD versions were available.

January 9, 1987 saw an extended roof feature available both with the Sambar Try trim level with the commercial version available with the standard height roof.
An electric clutch was added to the options list as did disc brakes for the front wheels.
Full-time 4WD was available towards the end of this generations product cycle.
In April 1989, a six-valve engine producing 25 kW (34 PS) joined the regular engine, itself downgraded to 28 PS.
The EN05 four-cylinder engine used in the Rex was never fitted to the KR/KT Sambar, as it would require re-engineering to be a replacement platform.
The Domingo was available with the 3-cylinder EF10 1000 cc engine starting in 1983.

A bigger version of the Sambar was available in Europe from 1983 with larger engines, the Sambar went by several names, such as the Subaru Sumo, Libero, Domingo, and Columbuss starting in 1983.
The small-bodied version went by the name of Subaru 700 in the few markets where it was available.

The primary difference between the Sambar and the larger-engined variants is the extension of both the front and rear bumpers to aid in occupant protection.
The larger Domingo (and its various iterations) isn't considered "kei class" because the dimensions exceed the requirements and the engine displacement is larger than regulations allow.
May 9, 1982 is when the fourth generation model appeared (KR), also introducing the non-commercial Sambar Try (KT). The suspension was upgraded to a four-wheel independent layout with MacPherson struts for the front wheels. The wheel size increased from 10 inches to 12 inches, thereby accommodating larger drum brakes used at all four wheels. The 4WD was available with a dual-range transmission.
While the home market Sambar came equipped with the 544 cc, 2-cylinder 21 kW (29 PS) EK23 engine, export versions (known as Subaru 700) received an enlarged 665 cc version of the same, producing 23 kW (31 PS). LHD versions were available.
January 9, 1987 saw an extended roof feature available both with the Sambar Try trim level with the commercial version available with the standard height roof. An electric clutch was added to the options list as did disc brakes for the front wheels. Full-time 4WD was available towards the end of this generations product cycle. In April 1989, a six-valve engine producing 25 kW (34 PS) joined the regular engine, itself downgraded to 28 PS. The EN05 four-cylinder engine used in the Rex was never fitted to the KR/KT Sambar, as it would require re-engineering to be a replacement platform. The Domingo was available with the 3-cylinder EF10 1000 cc engine starting in 1983.
A bigger version of the Sambar was available in Europe from 1983 with larger engines, the Sambar went by several names, such as the Subaru Sumo, Libero, Domingo, and Columbuss starting in 1983. The small-bodied version went by the name of Subaru 700 in the few markets where it was available.
The primary difference between the Sambar and the larger-engined variants is the extension of both the front and rear bumpers to aid in occupant protection. The larger Domingo (and its various iterations) isn't considered "kei class" because the dimensions exceed the requirements and the engine displacement is larger than regulations allow.
Subaru Sambar