Luxury Sport Convertibles Comparison

With the passenger compartment and engine sandwiched in the 95.1-inch wheelbase, legroom is a challenge. The meaty steering wheel only telescopes, so the long-legged might feel cramped, but the controls are well placed, of reasonable quality, and elegant, in an ovoid fashion. The Boxster makes the most of this layout with not one but two trunks; the front cubby is especially deep and roomy.

A single latch releases the convertible top from the windshield header, letting the top power up or down in 12 seconds. It's not quite a one-touch process, but close. Over the years, Porsche has upgraded the materials used in this top, and it does a nice job of keeping things quiet inside. One of its best design aspects is how it fashions its own tonneau cover in the top-down position, so there are no additional pieces to futz with. And kudos to Porsche for investing the effort and expense to (finally) give the Boxster a glass rear window. There's a wind-blocker that mounts just between the rollover hoops, and it's effective at further reducing wind noise and buffeting. In a nod to careful design, both cars look well proportioned with their tops in the up position.

A winner? The toughest challenge is considering either as any sort of loser. Both offer a large performance envelope, exceptional build/fit/finish quality, and a top-down experience that makes you want to drive. They'll both work as weekend toys or everyday drivers. Engine/chassis layout--and brand--preference may dictate your choice. In the end, the Z4's classic-roadster layout, ultra-accommodating cabin, and $13,000 price advantage carries the day with most of us.

Second Opinion
There's a lot to like about the new Z4, even if its design isn't among them. Too many lines stamped into its little body for my taste. That said, it sure as hell drives, and all its performance numbers are impressive. Yet the Boxster S remains my choice here. There's something about its mid-engine layout, whopping flat-six, the way its balanced chassis handles mid-corner bumps, and a certain X factor that ultimately makes it more satisfying. Sure, it cost more. But the hard-core sports-car enthusiast in this category won't care.--Matt Stone