Amphibious Vehicles Aren’t a Novel Idea
Amphibious vehicles aren’t exactly new. We’ve seen them pop up in military gear, oddball off-roaders, and the occasional movie prop, but you can’t exactly tick the ‘floats on water’ box at your local dealership.
Lately, a few Chinese EV makers have tried to prove that floating cars aren’t just science fiction. Some have even managed to get across a river during a demo, but let’s be honest – it’s more about grabbing headlines than a practical feature for your daily commute.
Mercedes-Benz, never one to shy away from wild ideas, seems to be taking a different approach. A fresh German patent shows the brand dreaming up a system where a future two-axle SUV could roll into a river, float across, and climb out the other side – all with barely any help from the driver. Instead of bolting on propellers or jet drives, Mercedes wants to make do with what’s already there: wheels, suspension, and a brainy set of sensors.

Mercedes-Benz
Water Mode Without a Propeller
The automaker doesn’t name names in the patent, only calling it a two-axle passenger vehicle. But let’s be real – everyone’s thinking Mercedes G-Class. It’s the brand’s off-road poster child, already loaded with fancy suspension, a buffet of terrain modes, and more software than some laptops.
The patent imagines a dedicated Water Mode that manages every stage of a river crossing – from entering the water to floating through it and climbing back onto shore. Once afloat, the SUV uses its spinning tires as paddles, while software independently adjusts each wheel’s speed to counter currents and keep the vehicle on course.
There’s even an ‘anchor’ mode that uses GPS and sensors to sniff out the current, aim the SUV upstream, and spin the wheels backward just enough to keep it from drifting away. Meanwhile, the active suspension can juggle each wheel up or down to help steady the ride when things get choppy.
Mercedes is also toying with the idea of removable foam or inflatable inserts that tuck inside the wheel arches. These would help the SUV float and cut down on water turbulence, turning the wheels into surprisingly effective paddles.

Mercedes-Benz
Clever Idea, But Still Just a Patent
If you’ve ever seen an off-roader flail around trying to claw its way out of a muddy riverbank, Mercedes has thought of that too. The system watches for when each wheel grabs traction and dials in the right amount of power so the tires don’t just spin themselves silly as the SUV hauls itself back onto land.
Technically, this patent isn’t really about turning the G-Class into a boat. It’s more like an off-road helper that just happens to work in water, blending independent wheel control, active suspension, navigation smarts, and sensors into a single water-crossing mode – no need for extra boat bits.
Those removable flotation inserts are another interesting bit. Forget giant pontoons or awkward floats – Mercedes wants lightweight inserts that hide inside the wheel arches, letting the SUV float without bulking up its shape. The patent even hints at inflatable versions you could stash in the trunk and whip out only when you’re about to go for a swim.
Of course, the usual patent warning applies. Automakers love to file wild ideas just in case, and most never make it past the drawing board. Some get watered down (pun intended) before they ever hit the road, so don’t hold your breath for a swimming G-Class just yet.

Mercedes-Benz
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