Designed by Munich-based KET — a firm that's worked with Mercedes-Benz, Audi, and more — Say Carbon's 42 yacht claims to be a sports car for the water. The numbers back that up. It has a 42-foot hydrodynamic lightweight hull with a wave cutting bow and stabilizing side wings, paired to dual engines producing up to 966 hp. The result is a craft that's able to hit speeds of 50 knots while remaining remarkably stable. Speaking of stability, a Seakeeper 2 gyro system helps prevent swaying while anchored, while carbon fiber racing seats keep the pilots firmly in place. A spacious sunbed, deck seating near the cockpit wet bar, and a forward cabin with a lounge that converts into a double bed and a bathroom with shower lets it accommodate up to 12 passengers or serve as an ideal weekend cruiser for two.