Here’s an excerpt from a New York Times piece today on a pilot “smart-grid” project in Boulder, Colorado:

BOULDER, Colo. — On Sunday nights, Philip DiStefano fills up his car. In most towns, this would not be a noteworthy event, but in this campus town, it is. DiStefano is chancellor of the University of Colorado’s sprawling campus here, and his car, a hulking Ford Escape, gets 54 miles per gallon.
That’s because it is a plug-in hybrid and he fills it by plugging into the wall in his garage.

Ford does have a prototype plug-in Escape hybrid, but it was hyped to get 120 mpg. From May:

A trio of Alabama Power employees parked a Ford Escape Plug-In Hybrid in front of Urban Standard cafe in downtown Birmingham, Alabama last Friday. The prototype Plug-in, on loan from Ford, is capable of 120 miles per gallon. Cedric Daniels, product manager for Alabama Power, told me the power company plans to drive it 30,000 miles per year, for three years. They will give Ford feedback on how it interacts with their electrical system. So far Cedric reports 100 MPG in mixed city, highway driving. The Plug-in Escapes are not for sale to the public yet. Only nine of these SUVs exist so far, Ford is testing them at seven electric utilities across the country.

Quite a difference in actual performance, eh? So much so that I doubt 54 mpg. would ever justify the added cost.