Every luxury sedan launched this year gets compared to one car, whether its maker admits it or not. That car is the S-Class. Engineers at BMW, Audi, Genesis, and Lexus benchmark their flagships against it not because tradition demands it, but because Mercedes-Benz keeps moving the target. The 2025 S-Class doesn't win every category outright, and its cabin has drifted toward the kind of screen-dominated interface that annoys purists, but it remains the car other automakers quietly study before finalizing their own.
That reputation isn't inherited from decades past; it's earned fresh with each generation, and this one earns it primarily through how it moves. The way the S-Class absorbs a broken road surface, filters out imperfections, and still manages to feel taut rather than floaty is the result of a suspension system that has been refined across generations to the point where competitors treat it as the reference ride. You feel the difference the moment you leave a pockmarked city street for the highway: where lesser luxury cars let you know a pothole happened, the S-Class merely suggests it did.
Ride Quality as the Foundation, Not an Afterthought
The air suspension setup, paired with active body control that reads the road ahead and adjusts damping in real time, is the single biggest reason the S-Class holds its benchmark status. Mercedes has spent years tuning the system so that it doesn't just soften impacts but manages body motion in a way that keeps occupants from feeling any of the small pitches and rolls that accumulate on a long drive. Over an hour behind the wheel, the cumulative fatigue is simply lower than in most rivals, and that's the kind of advantage you only notice when you get out of a competitor's car and realize your back feels different.
This matters because ride quality is the hardest thing for a competitor to reverse-engineer. Software can be copied, screens can be enlarged, and options lists can be padded, but a chassis tune that has been iterated on for this many years reflects an accumulated institutional knowledge that's difficult to leapfrog in a single product cycle. That's part of why the S-Class remains the reference point: rivals can match its feature list far more easily than they can match the way it rides.
Interior Craftsmanship That Rewards Close Inspection
Step inside and the case for the S-Class as the industry's yardstick continues. The materials aren't just expensive by spec sheet standards, they're assembled with a level of attention that shows in the details: seams that align precisely, wood and metal trim that transitions cleanly into leather, and switchgear that provides tactile feedback rather than a plasticky click. Ambient lighting is used with restraint rather than as a gimmick, washing across the dashboard in a way that makes the cabin feel considered rather than merely lit up.
The front seats offer an extensive range of adjustment along with heating, ventilation, and massage functions that go beyond basic kneading to include more elaborate programs designed to relax specific muscle groups. It's the sort of feature that sounds like marketing fluff until you're an hour into a road trip and realize your lower back doesn't ache the way it usually would. Fit and finish extend to areas owners rarely photograph, like the door pulls and the underside of the center console, which is where you can tell a manufacturer is building to a standard rather than to a spec sheet.
MBUX and the Rear-Seat Experience
Mercedes' MBUX infotainment system anchors the dashboard with a large central touchscreen and, on higher trims, an additional passenger display, all wrapped in a graphical interface that responds quickly and looks sharp in daylight and at night. Voice control has improved to the point where natural-language requests for climate changes, navigation, or media are handled with reasonable reliability, which cuts down on the need to dive into submenus. Over-the-air updates keep the software current in a way that used to require a dealer visit, which is a meaningful shift in how owners will experience the car over years of ownership rather than just at the moment of purchase.
Where the S-Class truly separates itself, though, is in back. This is a car that is bought as often for the rear seats as for the driver's seat, and Mercedes treats that reality seriously. Available reclining rear seats, extendable footrests, rear-seat entertainment displays, and a rear climate and lighting control panel turn the back bench into something closer to a private cabin than a mere seat. Executives and chauffeured passengers can adjust nearly everything without leaning forward, and the noise isolation back there is exceptional, with wind and road noise reduced to a background hush even at highway speeds. If you've ever wondered why hire services and corporate fleets gravitate toward this car specifically, spend twenty minutes in the rear seat and the answer becomes obvious.
The Touchscreen Complaint Is Real
None of this means the S-Class is beyond criticism, and the most persistent complaint aimed at it is legitimate: Mercedes has pushed an enormous number of functions into touch-based controls, and some of them are genuinely harder to use than the physical switches they replaced. Climate adjustments, certain drive mode settings, and even some steering wheel functions now rely on capacitive touch surfaces that require you to glance down and aim precisely, which is a worse proposition at speed than a simple knob or stalk. Mercedes has walked back some of this trend in response to criticism, reintroducing a few physical controls, but the overall philosophy still leans further into touch and gesture control than many drivers, especially older customers loyal to the brand, would prefer.
This is worth taking seriously rather than dismissing as nostalgia. A luxury flagship is supposed to reduce cognitive load, not add to it, and fumbling for a touch-sensitive slider to adjust cabin temperature while merging onto a highway undercuts the sense of effortless control that the rest of the car works so hard to deliver. It's a rare case where the S-Class's ambition to look cutting-edge works against its own core promise of serene, intuitive luxury.
Price Creep and What It Means for the Segment
The other honest conversation to have is around cost. Flagship luxury sedans across the industry have crept upward year after year, loading in more standard technology and driver-assistance features while trims and options packages multiply the ways a buyer can spend well beyond the base figure. The S-Class is no exception, and shoppers should expect that a well-equipped example, especially in long-wheelbase or Maybach-adjacent configurations, will land at a price that puts real pressure on cross-shopping with rivals that offer similar comfort for meaningfully less. Readers comparing trims should check current published pricing directly, since configurations and packages shift model year to model year, but the broader trend across this segment is clearly upward.
That price creep doesn't erase the S-Class's standing, but it does mean the value argument is weaker than the engineering argument. Competitors like the Genesis G90 have specifically targeted this gap, offering comparable materials and features for less money, and that pressure is real even if it hasn't yet dented the S-Class's status as the car everyone else measures themselves against.
The Verdict on the Benchmark
The 2025 S-Class earns its reputation through ride quality that's difficult to replicate, an interior that rewards close inspection rather than punishing it, and a rear-seat experience that remains the best in the business. It loses a few points for leaning too hard into touch controls at the expense of intuitive operation, and it asks buyers to pay a premium that keeps climbing. Neither issue is enough to dethrone it, but both are reasons a shopper cross-shopping the segment shouldn't buy on reputation alone.
Key Takeaways
- The S-Class remains the industry's reference point primarily because of a ride quality and chassis tune that rivals struggle to match.
- Interior craftsmanship and rear-seat comfort features continue to justify its position as the sedan chauffeurs and executives specifically request.
- MBUX is fast and visually polished, but the shift toward touch-based controls has made some routine functions harder to operate at speed.
- Mercedes has begun reintroducing physical controls in response to criticism, though the overall philosophy still favors touch and gesture input.
- Pricing has crept upward across the segment, and well-equipped S-Class configurations invite serious cross-shopping against rivals offering similar comfort for less.
- Bottom line: the S-Class is still the benchmark, but buyers should test the control layout in person and compare value against rising-quality rivals before committing.
