We don’t have many details yet, but the new Lexus yacht – the luxury car maker’s first foray into boating – will be a 65-foot “sport flybridge cruiser,” not the 42-foot sport boat it had announced last year. The company decided that the market was limited for the smaller boat, while the 65 “will definitely sell,” Shigeki Tomoyama, the head of Toyota Marine, said at a boat show in Yokohama. The new luxurious 65 will be built by the Marquis-Larson Boat Group in Wisconsin. The rendering above is a possible prototype. The first boat will be launched in the second…