4:Lexus ES:

An added bonus to fuel efficient cars is that they give out very low emissions and that is always good for the environment. A car that is fuel efficient but will certainly trick your eye is the Lexus ES, despite having a very luxurious look to it, it is absolutely fuel efficient and has a horsepower of 286 with a 3.5 liter V6 engine and on the road it gives you a whopping 40/39 city/highway mpg which will satisfy those fuel efficient buds within you.