The current Saturn Vue would make a poor "plug-in" hybrid. The electric motor is only to boost the gas motor so the vehicle really cannot be driven on electric alone.
It makes for a more efficient gasoline motor, but can't be made to go full electric (unless you are happy with 20 mph max speeds or a 10 mile range).
Next year's (2008) model uses a different driveline which will make a Plug-in hybrid possible.
I'm not interested in a full electric car. I want to be able to drive longer distances, if need be. A gas/electric hybrid is what I'd prefer. I won't be in the market for one for several years. By then, the car companies will have been working the bugs out for a while, and I'll find something nice, I'm sure. Also, by then, I hope we'll have a nice, efficient solar collection grid, so I don't have to pay ANYONE to charge my car.