Sporty yet sparing with fuel, the Mazda6's 2.5-liter four-cylinder delivered 32 mpg overall in our tests, the best fuel economy among conventional midsized sedans. The six-speed automatic is very smooth and delivers quick shifts. We found the 6 to be capable in the corners. The ride is taut and steady but on the firm side, and the cabin is rather loud for the class, with considerable wind noise on the highway. For the 2016 model year, the car receives a mild freshening that includes a new dash, and a center display screen that is operated via a central knob on the console, which takes some getting used to. A head-up display is optional.