The 2016 Mazda6 may not have the massive market share of best-selling rivals like the Honda Accord and Toyota Camry, but in the competitive midsize sedan market, it still stands out. True to Mazda's "Zoom-Zoom" boasts, the Mazda6's calling card is its athletic nature. Among the 11 family sedans comprising this segment, the Mazda6 is arguably the most fun to drive. Its 2.5-liter 4-cylinder engine isn't a powerhouse, but it is remarkably fuel-efficient. Rather than relying on brute force, the Mazda's dynamic performance is enabled by its light weight, impressive cornering ability, and a satisfying 6-speed manual transmission for do-it-yourselfers. Stylish design is also part of the Mazda6's appeal, but its 5-passenger interior can feel somewhat confined.