- Mercedes-Benz filed a German patent for a control unit that lets a two-axle off-roader enter water, float, and drive back out.
- Buoyancy comes from removable foam or inflatable inserts tucked into each wheel arch.
- The wheels handle propulsion and steering in water using per-wheel torque and adaptive steering angles managed by software.
Mercedes-Benz has patented a control system for something most SUVs never try: staying afloat. The filing describes a two-axle, two-track off-roader that can roll into a lake or river, level itself on the surface, and climb back onto shore without outside help.