  We introduce our project that investigates the kinematic properties of
early-type galaxies in 6 distant poor clusters at z~0.25. This study represents
a continuation of our efforts to understand galaxy evolution in low-density
environments. Higher-resolution MOSCA spectra have been obtained at the Calar
Alto 3.5-m telescope with which we can measure absorption line strengths and
velocity dispersions. In conjunction with our HST/F702W images of all the
clusters, we are able to construct the Fundamental Plane of ellipticals and S0
galaxies in poor clusters at a look-back time of ~3 Gyrs. For galaxies outside
the HST field, we concentrate our analysis on the Mg-sigma and Faber-Jackson
relations. With the line strength diagrams age/metallicity distributions can be
derived in densities between the field and rich cluster environments. Comparing
with our rich clusters at the same cosmic epochs, the dependence of galaxy
formation models on the local environment can be tested more quantitatively.
