Top 10 Cheapest Non-Hybrid Cars That Get 40 MPG Highway

2. Fiat 500 Pop $16,700

With its charming design, it’s hard to believe that the Fiat 500 is both so affordable, and well behaved when it comes to fuel. The Fiat 500 Pop model, when equipped with the 1.4L engine and manual transmission is able to get hit that 40 mpg highway benchmark, and stay very competitively priced at $16,700. See the full specs of the Fiat 500 Pop at our new car buying page.