If you drive a BMW Z3, there's a good chance you love to cruise with the wind in your hair. If that coupe or roadster has a drop-top, it may have a tonneau cover. They're usually made of cloth or vinyl, and they often have a rib-like frame for supporting and tautening that fabric. What they do is straightforward: they protect you and your passengers from weather, road debris, insects, and other outdoor hazards, and they conceal and contain your sports car's contents. Plus, if they're designed aerodynamic, they'll diminish air resistance or "drag" during driving. As a result, your car can move faster, and your engine doesn't have to burn as much fuel or work as hard to do it. This can even improve your gas mileage a little bit. Above all, however, tonneau covers add a touch of what defines sports cars: sleek style. So, what are the best for your BMW Z3? The answer's simple: the genuine article. Those made by BMW for your Z3 get designed to the vehicle's specs from the start. You can find more than a few here at our auto parts store, and you can buy one online for delivery right to your door. So, upgrade your ride today -- order now!