You can get a lot of toys for your superyacht. Water trampolines. Water slides. Water sleds. Water skis. The problem is, as these names suggest, they’re all made for fun at sea. And no matter how swank your boat is, you’re going to spend some time in port, and you don’t want the fun to end just because you’re on land.

That’s where Ian Briggs comes in. He’s the guy behind Briggs Automotive Company and the Mono, a superlight supercar designed purely for fun, preferably on a track. “It has no transport function at all,” Briggs says. “We set out to design a piece of sport equipment for an extreme sport.”

That single-seat design is pure awesome, and now Briggs and his Liverpool-based company are tailoring it for a very specific set up customers: yacht owners.

The Marine Mono is a concept that riffs on the the Mono, with a few tweaks to optimize it for life at sea. The metal components get a rust-resistant finish, and the electronics are protected from the corrosion inflicted by moisture and salty air. The car’s roll hoop accepts a strap, so the car can be loaded and unloaded easily.

Again, it’s not about getting around—that’s what limousines are for—but frivolity while docked in, say, Monaco. “You could unload a couple of Marine Monos,” Briggs says. “You and your pal go for a blast around the Monte Carlo rally stages and head all the way up into the mountains.”

If you’re going to modify any car to live on a boat, the Mono’s a good choice, mostly because it’s small and light—just 1,279 pounds. “Everything that makes it a good driver’s car makes it suitable to be the ultimate luxury automotive toy for a yacht,” Briggs says. Those things include a 280-horsepower four-cylinder engine and F1-derived pushrod suspension. The Mono is said to hit 60 mph in a supercar-quick 2.8 seconds and max out at 170 mph. Better wear a helmet with a visor though, because apparently a windshield was just too heavy to include.

Like the standard Mono, the Marine would come with all the personalized luxuries you can pack into a car this stripped down. That includes your choice of color scheme, naturally, but also a steering wheel and seat molded to fit your velvet-gloved hands and silk-underweared posterior.

The “base” Mono starts for $195,000, but usually sells for about $272,000. That kind of money gets you something from a top-tier German, Italian, or British automaker. The Marine would be “a lot more expensive,” Briggs says. The yacht-bound car is still just a concept, and it’s unlikely to head for volume production, though you never know.

“We’ll just have to see how the world responds to this concept,” Briggs says. Well, .01 percent of the world, anyway.

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The Marine Mono Is a Supercar Built for Life on a Superyacht