Climate pact drives green car technology : Spectators milling about the 33rd Tokyo Motor Show inspected a wide range of "environmental" vehicles, applauded by activists who have long lobbied the auto indistry to take more responsibility for its role in global warming. At centre stage at the motor show, which opened October 23 and ends November 3, was the fuel cell vehicles, an electric car that is equipped with fuel cells that functiuon as power generators.