Journalists look at the BMW i8 concept car at the 42nd Tokyo Motor show in Tokyo on November 30, 2011. - AFP Photo

Osamu Suzuki, chairman of Japan's Suzuki Motor, inspects the company's concept vehicle called the 'Q-concept' during the Tokyo Motor Show in Tokyo on November 30, 2011. – AFP Photo

A visitor snaps Daihatsu Motor Co., concept car "FC SHO CASE" on displays during the Tokyo Motor Show in Tokyo, Wednesday, Nov. 30, 2011. - AP Photo

Toyota Motor Corp's production prototype of the "86" compact rear-wheel drive sports car is seen at the 42nd Tokyo Motor Show in Tokyo November 30, 2011. – Reuters Photo

A model presents Toyota's concept vehicle Fun-Vii at a pre-Tokyo Motor show reception in a showroom in Tokyo November 28, 2011. The whole body of the concept car can be used as a display space, with the body color and display content changeable at will, and allows the vehicle to function as a terminal for displaying messages or other information, the company said. – Reuters Photo

A model poses by Toray's concept Electric Vehicle (EV) "TEEWAVE AR1" at the Tokyo Motor Show in Tokyo, Wednesday, Nov. 30, 2011. – AP Photo

Toyota Boshoku Corp.'s concept vehicle T-Brain is displayed during the press preview of Tokyo Motor Show in Tokyo, Wednesday, Nov. 30, 2011. The Tokyo Motor Show opens to the public this weekend. - AP Photo

Japan's auto maker Daihatsu, Toyota's small car affiliation, displays the company's concept model two-seater electric personal mobility vehicle called the "Pico" at a press preview for the Tokyo Motor Show on November 30, 2011. Energy-saving electric cars with advanced green technology were vying for attention as the Tokyo Motor Show opened, with robots and computers becoming ever more part of the vehicles on display. - AFP Photo

Japan's auto giant Mazda Motor displays the concept mid-sized sedan "Takeru" with an economy efficiency Skyactiv-D diesel engine at a press preview of the Tokyo Motor Show on November 30, 2011. Energy-saving electric cars with advanced green technology were vying for attention as the Tokyo Motor Show opened with robots and computers becoming ever more part of the vehicles on display. – AFP Photo