The Least and Most Fuel Efficient Hybrid Vehicles Nothing has come close to the Godfather of American-sold hybrid cars; the 73mpg 2000 Honda Insight. It?s been 8 years since the Insight went on sale and the closest gas mileage any hybrid on the road today gets to the Insight is 46mpg - a 27mpg DECREASE. So much for ?improving? technologies over time . . . Here?s what passes as a hybrid today - the 11 least efficient hybrid vehicles: 1-2) (tie) Chrysler Aspen Hybrid & Dodge Durango Hybrid 19 MPG 3-5) (tie) Chevy Tahoe Hybrid, Lexus LS 6
