These and other contemporary design touches give the 40x a cool factor, but the Ray Hunt-designed, deep-V hull form matched to triple (and optional) 425 hp Yamaha outboards is what gives this cruiser a notable “wow” factor. During sea trials on the waters off Sag Harbor, New York, the 40x made an average top hop of 46.5 knots at 6,000 rpm. At this speed, the engines consume 108 gallons per hour. Considering a 10 percent reserve on the yacht’s 450-gallon fuel tank, range is about 174 nautical miles at her top speed. Dial those engines back to 4,500 rpm, and fuel burn drops to 56 gph while cruise speed is 34.8 knots. At cruise, the 40x’s range increases to around 251 nm. At 4,000 rpm and 30 knots, fuel burn is 44 gph and range ticks up to 276 nm.