I've never owned a car, let alone a new one, but it seems likely to happen sooner or later. This is the kind of thing I long for. Saab Unveils World’s First Biofuel Hybrid.

It's ethanol rather than Biodiesel, and it's a concept car, but it shows that automakers may be at least attempting to move in the right direction.

My ideal is a Biodiesel Hybrid light pickup. Here's hoping.