Toyota plans to launch six fresh hybrid vehicles by the end of 2012, a company spokesman has said, as competition to construct greener cars increases.
The raise will take Toyota's total number of hybrid models to 20.
The Wall Street Journal stated that two would be luxury brand Lexus models and four would be Toyota vehicles.
Rival Nissan's Leaf electric car is due in the US and Japan later this year, and Honda is to begin selling electric cars in those markets in 2012.
As well as the new hybrid models, which run on petrol and electricity, Toyota will also reveal a fully electric version of its RAV4 sports utility vehicle later this year, the spokesman said.
The model, developed with its US partner Tesla, will be exposed at the Los Angeles auto show in late November.
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