3. 2016 BMW 328d
MPG City 32 / Hwy 45
The BMW 328d is a diesel powered sedan that is designed with fuel economy in mind. EPA estimated gas mileage is listed as 32 mpg city and 45 mpg highway. Touted as the merging of fuel economy and performance, the 328d is powered by a 2.0 liter four-cylinder turbo-diesel engine producing 180 horsepower and 280 lb-ft of torque. With all that torque you could smoke the tires off the car before you need to add fuel. The transmission is an eight-speed automatic. In order to comply with smog standards the 328d has an additional fuel tank that specifically holds AdBlue fluid meant to last between 6000 and 10000 miles, the vehicle won’t start without this special fluid and the 328d will give multiple warnings when the levels get low.