Top 10 Worst Vehicles for the Environment

9. Lexus LX 570

The large luxury SUV from Lexus comes in with a green score of 23 out of 100. Under the hood is a 5.7-liter V8 engine that makes 383 hp and 403 lb-ft of torque. That might sound like a lot of thrust, but the LX 570 weighs 6,000 lbs, leading this beast to a 14 MPG combined rating.