Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Sisu M-161 -  Sisu M-series is a 2–4-axle forward control lorry model series made by the Finnish heavy vehicle producer Suomen Autoteollisuus (SAT) in 1969–1984. The series consists of 4×2-driven M-161 6×2-driven M-162 6×4-driven M-163 and 8×2-driven M-168. Typical applications were logging trucks tankers and long-distance transportation haulers which pulled conventional and semi-trailers. The permissible payloads varied from ca.
The answer is:
Mean Of Transportation