NAGOYA, Japan/NEW YORK -- Toyota Motor's long-awaited triumph in the U.S. auto market is already threatened by American automakers' ambitious shift toward electric vehicles.
Japanese carmaker can't rest on laurels as all-electric future looms

SUVs being assembled at a Toyota plant in the U.S. state of Kentucky.
NAGOYA, Japan/NEW YORK -- Toyota Motor's long-awaited triumph in the U.S. auto market is already threatened by American automakers' ambitious shift toward electric vehicles.