I'm not sure but I think they started development a few years ago and I haven't seen production models yet. However the idea seems advanced with David Cox, Formula 1 designer, horizontally opposed cylinders and two stroke diesel engine weighing only 300lbs and wait for it, its a British Company based in West Sussex no less.

What are your thoughts? Let us know if you think its good/bad and if it will work, bearing in mind sales to the RN and for Superyacht Tender market, both of which, I've read, don't have Petrol on board anymore.