TREMONT, Maine — If you are looking for something to race, few vehicles are less suited to the task than lobster boats. Squat, squarish, loaded with tons of equipment, lobster boats are essentially floating platforms, working craft from which lobster traps are hauled up or dropped off, often in lousy weather. Yet about 70 such boats are expected to race a mile course just outside Bass Harbor on Sunday as part of the 2018 Maine Lobster Boat Racing season.