Burger is one of the oldest, if not the oldest, boat builder in the United States. In fact, Burger has been building yachts, usually large yachts, at its plant in Manitowoc, Wisconsin, since 1864. In the summer of 2018, Burger made a big move toward a more popular size, and launched a 48-foot cruiser with a hull from the Dutch design firm Vripack and power from Volvo’s IPS pod drives. Since then it has launched a 50 and a 66. Now, the company has another idea, a 63 sportfishing motor yacht, also designed by Vripack, and also with IPS power.…