Both Ford and General Motors are introducing their new hybrid cars, which feature highly efficient gasoline engines working alongside advanced electric motors.
(Both Ford and General Motors; are introducing; their new hybrid cars, which feature highly efficient gasoline engines) (their new hybrid cars; feature; highly efficient gasoline engines working alongside advanced electric motors) (highly efficient gasoline engines; working; L:alongside advanced electric motors)
Both Ford and General Motors their new hybrid cars highly efficient gasoline engines
are introducing feature working
their new hybrid cars, which feature highly efficient gasoline engines
highly efficient gasoline engines working alongside advanced electric motors
L:alongside advanced electric motors