There is a Jag with a Merc 400R and lithium batteries on the BBC for sale page. Man that is one fine machine. I have an Eyra with a 250 and I know what it’s capable of both on top end and comfort. I can only imagine how that Jag runs with a 400R. My guess is it would be as close to a hovercraft as you could get…crazy fast and you probably can’t feel anything, kind of like you are floating on air. Awesome!