fuel economy

Bumper-to-Bumper Green Cars at Detroit Auto Show

What are car makers tooting their horns about? All the earth-friendlier engines at the Detroit auto show. Hyundai's plug-in Blue Will concept car and Nissan's all-electric Leaf are just a couple of the new models. Companies are keen to show they are serious about raising gas mileage and reducing emissions.

Planning for $7 a gallon gas

It's not out of the realm of possibility that gas could rise to $7 a gallon within the next several years. I'm skeptical about that, but then, I...