  We study the projective special Kaehler condition on groups, providing an
intrinsic definition of homogeneous projective special Kaehler that includes
the previously known examples. We give intrinsic defining equations that may be
used without resorting to computations in the special cone, and emphasise
certain associated integrability equations. The definition is shown to have the
property that the image of such structures under the c-map is necessarily a
left-invariant quaternionic Kaehler structure on a Lie group.
