The new Nimbus 405 Flybridge is the latest iteration of the popular and prize-winning Nimbus 405 Coupe, adding space, an additional helm station and lots of entertaining room to the three-stateroom, two-head, Swedish-built, all-weather cruiser. The 405 Coupe was a hit when it was introduced three years ago, winning a Best of Boats Award and a nomination for European Powerboat of the Year. Nimbus is relatively new in the U.S., and it’s represented by Essex Yacht Sales in Connecticut on the East Coast and by Seattle Yachts on the West Coast. But the brand is well-established in Europe; it started…