As an approach for reducing cabon dioxide
emission to prevent global waming, Toyota has
promoted the development of hybrid vehicle, targeting
twice the fuel economy of a conventional vehicle.
The plius, the world-first production hybrid vehicle,
was sold in Japan in 1997, followed by the United
States and Europe in 2000. Through sales
oppormnities, the effect of hybrid techniques has begun
to be recogn~~ewdo rldwide.