Chevy’s ancient cargo van takes the number two spot, with a green score of just 18. Equipped with 6.0-liter V8 engine, the 2500 express makes just 342 HP and is good for just 12 MPG combined. That may sound pretty good, but as this is a flex-fuel vehicle and when running on E85, the car just gets nine MPG combined and a total driving range of just 279 miles. Ouch!
