After several years in the making, you may soon be able to finally get your hands on the world's first powerboat-submarine hybrid – if you've got $3.5 million to spare, that is. The James Bond-worthy Hyper-Sub from Marion HSPD (Hyper-Submersible Powerboat Design) is finally gearing up for production in time to capture the growing market for luxury submersibles that can be launched from one's superyacht. The latest oligarch's plaything is the first small craft built with the horsepower, sea-worthiness, and range to allow operation on the open ocean, which also functions as a self-charging, autonomous submarine. On the powerboat side, it's a heavy-duty, 31-ft. surface-cruiser with an enclosed cabin. Powered by twin 440 hp inboard diesels for a total output of 880 hp, the Hyper-Sub has a maximum surface speed of 40 knots and a maximum surface range of 500 miles. In dive mode the Hyper-Sub can plunge up to 250 feet, and offers umbilical SCUBA support. With seating for up to four passengers plus a pilot, the craft's 180-degree acrylic canopy provides panoramic undersea views. With an elegant woodgrain interior, leather seating, onboard GPS, auto-pilot and a satellite phone, it's also a pretty luxurious ride.