BERLIN (Reuters) -- BMW and Toyota are planning to expand cooperation beyond green car technology and diesel engines, Der Spiegel magazine reported on Sunday, without citing any sources.
The German premium carmaker agreed with the Japanese manufacturer last December to supply diesel engines to Toyota starting in 2014 in Europe and collaborate on lithium ion battery research for electric cars.
Both companies have since been exploring other fields for cooperation and have now agreed several projects, Der Spiegel said without being more specific.
BMW CEO Norbert Reithofer and Toyota President Akio Toyoda will announce details in the near future, the magazine said.
A spokesman for BMW declined to comment on the report.
Last week, BMW's joint venture to make hybrid car components with French automaker PSA/Peugeot-Citroen was thrown into doubt by the prospect of deepening ties between PSA and its European rival, Opel, a division of General Motors.