A new study by Harris Interactive AUTOTand interest i

Dodge has developed a concept hybrid vehicle called the PowerBox. It's a combined SUV/Truck with a V6 hybrid. It's capable of  60 percent better fuel efficiency than a comparable SUV, and has near-zero emissions.

It's powertrain is very unique: it has a supercharged V6 engine that runs on clean compressed natural gas (CNG) and an electric motor.

The PowerBox is expected to achieve 25 MPH.

With this unusually design, you might wonder if it's got reasonable power; after all CNG is clean, but not necessarily high power output. But this combination can do 0-60 in about 7 seconds.