  We examine some Weyl invariant cosmological models in the framework of
generalized dilaton gravity, in which the action is made of a set of $N$
conformally coupled scalar fields. It will be shown that when the FRW ansatz
for the spacetime metric is assumed, the Ward identity for conformal invariance
guarantees that the gravitational equations hold whenever the scalar fields EM
do so. It follows that any scale factor can solve the theory provided a
non-trivial profile for a dilaton field. In particular, accelerated expansion
is a natural solution to the full set of equations.
