Filed under: Etc. , Europe , Japan , Plants/Manufacturing , BMW , Toyota BMW has confirmed the German automaker will join forces with Toyota to create new green technologies . The two companies have signed a memorandum of understanding for mid-to-long-term collaboration on next-generation lithium-ion battery technology, with the option to expand the partnership into additional areas. BMW has also announced the company will supply Toyota with 1.6-liter and 2.0-liter diesel engines beginning in 2014. That doesn’t mean we’ll be seeing a clean-diesel Prius in the U.S. anytime soon, however. BMW stresses that the engines will be used exclusively in Toyota products destined for the European market. What other sorts of tech could be spread between the two automakers? BMW may have an eye on gleaning some hybrid knowledge from the fiercely successful Prius program, and we wouldn’t be surprised if BMW slipped its new partner a few hints on carbon-fiber construction, either. Either way, the partnership will likely save both automakers plenty of research and development dollars, helping to bring new tech to customers with a slimmer price tag than would otherwise be possible.