The 2016 BMW Z4 combines the power, handling and feel of a sports car with the style, comfort and open-air fun of a luxury roadster. This hardtop drop-top splits the difference between the luxury-oriented Mercedes-Benz SLK and Audi TT and the more overtly sporty Porsche Boxster, appealing to sports-car and touring enthusiasts alike. The BMW Z4 uses a retractable hardtop, making it more secure than cloth-topped rivals. Inside, the cockpit is designed to be roomy enough even for tall drivers, a rarity in this class. Not only do both the 4-cylinder (sDrive28i) and 6-cylinder (sDrive35i and sDrive35is) models offer plenty of turbocharged power, the 4-cylinder's 34 mpg is good enough to call it a fuel-sipper.