  With considerations of the recently released WMAP year three and supernova
legacy survey (SNLS) data set analysis that favors models similar to the $%
\Lambda CDM$ model by possibly mild fluctuations around the vacuum energy or
the cosmological constant, we extend the original Chaplygin Gas model (ECG) via
modifying the Chaplygin Gas equation of state by two parameters to describe an
entangled mixture state from an available matter and the rest component (which
can take the cosmological constant or dark energy as in the current cosmic
stage, or `curvature-like' term, or radiation component in the early epoch, as
various phases) coexistence. At low redshifts, the connection of the ECG model
and the Born-infeld field is set up. As paradigms, we use the data coming from
the recently released SNLS for the first year and also the famous 157 type Ia
supernova (Ia SNe) gold dataset to constrain the model parameters. The
restricted results demonstrate clearly how large the entangled degree or the
ratio between the energy density parameters of the two entangled phases being.
The fact that the ECG models are consistent with the observations of Ia SNe is
obtained through the redshift-luminosity distance diagram, hence the ECG can be
regarded possible candidates for mimicking the current speed-up expansion of
our universe.
