  The production cross--section and distributions of the top quark are
sensitive to new physics, e.g., the $t\overline{t}$ system can be a probe of
new resonances or gauge bosons that are strongly coupled to the top quark, in
analogy to Drell--Yan production. The existence of such new physics is expected
in dynamical electroweak symmetry breaking schemes, and associated with the
large mass of the top quark. The total top production cross--section can be
more than doubled, and distributions significantly distorted with a chosen
scale of new physics of $\sim 1 $ TeV in the vector color singlet or octet
$s$--channel. New resonance physics is most readily discernible in the
high--$p_T$ distributions of the single top quark and of the $W$ boson.
