A modified 1982 SJ30 Suzuki Jimny - a car known by many names - but as a Sierra to me.
1982 was the second year for the second generation Jimny. A small 4WD motivated by the tiniest of engines. If this one really is the SJ30 it is advertised as - then we're talking a sub 660cc 3cylinder!
Seeing the modifications made to the rest of the car, the original engine might not remain; but funny regardless.
Basically, its fairly unimportant... I'm sure it can get almost anywhere...
.. as long as theres nothing remotely considered a cross-wind!