Isuzu is considering streamlining US production of sports utility vehicles at its US joint venture with Subaru maker Fuji Heavy Industries Ltd but no details have been decided, Reuters reported. Reuters said Isuzu had responded to a report in the Nihon Keizai Shimbun newspaper that it would dissolve its SUV venture by the end of this year to focus on truck operations by putting out a statement saying Subaru-Isuzu Automotive Inc, the joint venture, is looking for ways to make production more efficient.