  We point out an analogy between two accreting white dwarfs with jets (CH Cyg
and MWC 560) and powerful quasars. In spite of the enormous difference in the
mass of the central object (a factor about 10^7), the emission lines are
strikingly similar to those of I Zw1 (the prototype "Narrow Line Seyfert 1"
nucleus whose spectrum is widely used as an FeII template for almost all
quasars). The spectral similarity give us the unique possibility to consider
the optical Eigenvector-1 diagram using objects less massive by a factor of
millions. Our results reinforce the interpretation of the "Eigenvector-1
correlations" found for low redshift quasars as driven mainly by the source
luminosity to central compact object mass ratio(L/M). The accreting white
dwarfs CH Cyg and MWC 560, their jets and emission lines, may well represent
the low energy, non relativistic end of the accretion phenomena, which
encompass the most powerful quasars and the microquasars. The remarkable
similarities suggest that they may be legitimately considered "nano-quasars".
