Mercedes' clever wing: endplates that turn into extra wings

© uspto.gov

Mercedes-Benz has patented an unusual rear wing solution that could come in handy for future Mercedes-AMG GT or Black Series models. The idea is simple to explain but striking in effect: the endplates of the wing can move and change roles depending on the mode.

In their normal position, the elongated lower elements work as large endplates. Their job — to separate the high- and low-pressure zones around the wing and reduce airflow leaking between them. This preserves the wing's efficiency, cuts parasitic losses and adds stability at speed. For a track car that matters more than it seems: the rear axle becomes more predictable and the tyres hold the tarmac better.

In the other position, the plates pivot upward and turn into two short additional wings at the edges of the main wing. That way AMG can quickly add more downforce without swapping in a different wing for a specific track. By the patent's logic, this solves an old race-car problem: every circuit demands its own downforce balance, which means adjustments, different parts, different wing shapes, mounting time and the risk of a setup error.

For customer racing AMGs the solution looks especially useful. Fewer separate aero kits mean lower team costs and easier setup work. Motors, hinges and controllers will add mass and complexity, but against the cost of swapping the entire wing this looks like a reasonable trade-off.

On a road car the value is different. A huge fixed wing looks great on the AMG GT Black Series, but it gets in the way in town, at the car wash, during transport and parking. Adaptive elements would let you drive with a tidier configuration day to day and only unlock the extra downforce on track or in a sport mode.

A patent does not guarantee production — Mercedes-Benz may simply be protecting the idea. But the technology fits the future extreme AMGs neatly: a CLE 63 Black Series, a new AMG GT Black Series or a track-only special project would gain not just power but a real aero trick as well.

The most interesting part here is not the show of moving parts. Mercedes-AMG is trying to make track aerodynamics less brute-force: not just more wing, but more downforce exactly when it is actually needed.