The new car on the market.
The world's largest automaker says it aims to sell up to 400-thousand units globally a year of the new-look Prius.
Akio Toyoda, the grandson of the company's founder, and the incoming president of Toyota Motor Corporation, drove the new model onto a stage at a packed Tokyo showroom.
He said the car was eco-friendly and that driving it had a similar impact on emission cuts as planting trees "across land 10 times the size of Tokyo".
Toyoda, 53, was tapped in January to take the helm at the world's biggest automaker, the first time in 14 years it has turned to the charisma of its founding roots for top leadership, mainly to bring employees and affiliates together and steer the automaker through deep troubles.
Both Toyoda's presence and new Prius are symbolic of Toyota Motor Corporation's pursuit of a turnaround from its worst annual loss since its 1937 founding.
The Prius, now in its third generation since its 1997 introduction, is the best-selling hybrid in the world, racking up a cumulative 1.256 (m) million units sold in more than 40 nations and regions.
But now Toyota faces a challenge from Honda Motor Co., whose more cheaply priced Insight has sold briskly since it was introduced in Japan in February.
In April, the Insight ranked as the top-selling vehicle in Japan, the first time a hybrid clinched that spot.
Toyota said its Japan prices for the Prius would start at 2.05 (m) million yen, or about 21,600 US dollars at current exchange rates, less than its predecessor model.
But in an unusual move aimed at competing against the Insight, Toyota also said it will continue to sell the current Prius in Japan, and cut its price.
It targets rental and corporate customers, and will sell for 1.89 (m) million yen, the same price as the Insight.
Toyota had already given the US prices for the 2010 Prius, starting at 22,000 US dollars, unchanged from the base price for the 2009 model.
It is also promising a more basic US model as well for later this year starting at 21,000 US dollars.
The new Prius gets a combined 50 miles per gallon (mpg), compared with 46 mpg for the 2009 model, according to Toyota.
Toyota is promising 38 kilometres per litre, which converts to 90 miles per gallon, in Japan, for the latest Prius.
Toshio Aritake, an auto analyst at the showroom in Tokyo called the Prius "very competitive."