Different types of engines are more suitable for certain uses and conditions than others. Boats have both minimum power needs and maximum power limitations. Don't overpower to gain more speed. The extra weight on the transom may imbalance the boat and lower the freeboard. What the boat should be made of.
Hull compositions can be fibreglass, aluminium, wood or inflatable.
What you need may depend on how and where you use, maintain and store your boat. Buoyancy Consider buying a boat fitted with in built buoyancy or have extra buoyancy installed. Many smaller boats are built with buoyancy and are said to have positive flotation. This is a technical term meaning the boat will stay upright when filled with water and will support the weight of passengers, equipment and the motor. In built buoyancy is also possible in larger fibreglass boats however it must be requested before manufacture.