Yes that is Cambridge, MA of click and clack fame.
I have become interested in modifications to my cars to increase mileage. I have been driving more like the hypermilers than less since I retired and time constraints are not so important any more.
I have several vehicles that could stand some work. A Buick Le Sabre 1994 model is one and a Volvo 242GT 1979. The Freedom Vehicle is a very interesting idea too.
One of the things that is most puzzling to me is why there has not been as much work done on basic thermal efficiency in gasoline engines in particular. We are lucky to see 20% and usually much less.