The Z3 M Roadster is a special car, and this is the most special version of all ??? the "S54"-powered M Roadster, meaning it's a rare, limited-production late model example equipped with the 3.2-liter inline-6 borrowed from the E46 M3. That's a big deal, as fewer than 15 percent of these Z3 M Roadster models got the bigger S54 engine like this one. This particular car is finished in Black Sapphire Metallic with a gorgeous Black interior, and it features heated seats, an M steering wheel, and a Continental audio system that replaced the Harman/Kardon sound system to add blue tooth phone integration. Of course, it comes with a 5-speed manual and new stock wheels and tires.