The heavily upgraded Mercedes-Benz S-Class has made its world debut, five years after the German automaker’s current W223-series flagship sedan debuted in 2020.

Mercedes-Benz says the 2026 S-Class represents the most comprehensive mid-cycle update in the model’s history, with more than 50 per cent of the extra-large luxury limousine (around 2700 components) being newly developed, updated or refined to better compete with rivals including the BMW 7 Series and Porsche Panamera.

Key highlights of the latest S-Class, which arrives in Australia in the fourth quarter of this year, include an optionally illuminated three-pointed star emblem on the bonnet, a 20 per cent larger illuminated grille, and new twin-star Digital Light headlights with micro-LED technology, which preview the brand’s next-generation lighting signature.

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The existing S-Class found 80 new homes in Australia in 2025 (when it was outsold by only the Panamera with 82 sales), but the flagship sedan’s local popularity has declined considerably since 2000, when the then-new W220 S-Class attracted 660 buyers.

Shrinkage of the limo segment is attributable to the mass exodus of traditional sedan buyers to equivalent luxury SUVs like the Mercedes-Benz GLS, which found 685 buyers in 2025, while its BMW X7 rival totted up 1125 sales.

The latest S-Class will also face friendly fire in some markets from Mercedes-Benz’s own upcoming VLE electric people mover, which is expected to serve up limo-like first-class luxury and comfort, along with the space and versatility of an extra-large wagon.