Ltd. established in Sydney, Australia.[50] Suzuki enters general-purpose engine field by marketing three electric power generator models.[51] Launch of the GSX series of motorcycles with four-stroke, DOHC four-valve engines.[52] 1981: Consolidated (i.e., including subsidiaries) sales for the fiscal year reach ¥500 billion.[51] General Motors and Isuzu Motors announce cooperation with Suzuki Motor Company in the production and marketing of new "mini-cars".