Japanese carmakers highlighted their latest green technology concept cars during Wednesday's media preview at the Tokyo Motor Show as they bid to lead the global trend toward energy efficiency and reignite interest among young people in automobiles.

Previously held in Makuhari, Chiba Prefecture, it is the first motor show in Tokyo in 24 years, and an attempt to steal the spotlight from rival motor shows in Beijing, Shanghai and New Delhi, where car markets are booming.

On display with the new electric vehicles and sports cars were the major carmakers' visions of the future.