Justin got it right.

While Saturn are calling the VUE Greenline a "mild hybrid", the only functions of the extra battery are to fast-start the ICE and to keep the amenities working during auto-stop. This means that the AC will continue to blow cold air while the ICE is turned off, but there is no mode for moving the vehicle solely under electric power at all.

The price is certainly lower, and the Highway MPG is very good, but the VUE just isn't a true hybrid.

The Escape and Mariner are almost exactly the same size as the VUE, and are true hybrids.

Curt