The latest addition to the Turkish shipyard Numarine’s line of high-performance motor yachts ranging from 55 to 130 feet is the 70-foot Numarine 70HT (www.numarine.com). A huge one-piece windshield, windows that run the length of the saloon, and large glass-covered openings in the hull allow natural light to fill the main-deck and below-deck interiors. Numarine offers two standard layouts for the 70HT, one with three cabins and the other with four. The yacht is powered by twin MAN 1200 motors that enable a top speed of 34 knots and a cruising range of 489 miles. The starting price of the 70HT is about $2.8 million.