Stop in for a cup of coffee

Just curious, what is that being put behind?
That will go on any standard fishing boat or pontoon where they are rated up to 400hp. The other 400hp we make is a supercharged 2.6l inline 6. This is naturally aspirated v10. So very quiet and really moves. The 34ft center console fishing boat I was on with 3 of these was about 65mph.