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Mercedes-Benz S-Class
#9 Highest Horsepower Sedans

2026 Mercedes-Benz S-Class

3.6
rating
Consumer
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2026 Mercedes-Benz S-Class Exterior: 0
2026
2025
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Electric Variation Available

Fuel Economy
20 - 23 combined mpg
Horsepower
442 - 502 hp
Engine
3 engines available
Engine Options
  • 6-Cyl, Hybrid, Turbo, 3.0 Liter
  • 6-Cyl, MHEV, Turbo, 3.0 Liter
  • V8, MHEV, Twin Turbo, 4.0 Liter
Cargo Volume
12.8 cu ft
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2026 Mercedes-Benz S-Class Overview

S-Class Consumer Sentiment

Owners give this generation Mercedes-Benz S-Class (2021-current) a 3.6 out of 5 rating, which is higher than most, and 80% recommend it. These figures are based on 5 consumer reviews, like these:

What Owners are Saying About the 2026 Mercedes-Benz S-Class

"Great car in fantastic condition"

"Fantastic shape. New tires everything perfect condition. Beautiful black car Interior beige leather perfect condition"

"Exceptional"

"This 2022 S Class replaced my 2017 S Class. I am overwhelmed by the improvement between the two cars. Everything is better. The ride quality, the materials, the overall feel of quality, the audio system, the interior silence, even the fuel consumption. My car is highly optioned, but the base car is also an excellent choice. Once you own an S Class, the only other car you buy is another S Class. This car is truly exceptional."

"A few issues"

"I'm a first time MB owner. The car has some outstanding features like rear axle steering, suspension that compensates for curves, interior comfort, etc. However, I have experienced several issues that shouldn't have happened. First, in cold weather (I took delivery on Oct 31 in Michigan), the caliper pads adhere to the rotors. When one puts the car in reverse for the first time each day, there is a loud bang when the pads break loose from the rotors. If you take the emergency brake off when parking the night before, the problem doesn't present itself, but you shouldn't have to have a work around for something this simple. The dealer says the vehicle is operating as designed. Second, also in cold weather, the initial light throttle 2-3 upshift is extended to the point that it doesn't occur until 4500 RPM in some cases unless you force a shift by letting up on the accelerator. After the transmission gets to operating temperature, the problem disappears (although the shifts aren't timed very well, engine flare is apparent during shifts regardless of temperature). I don't know, and the dealer can't tell me, if it's a MB built transmission or a ZF. Again, the dealer tells me this is normal, it's not. I ran transmission plants for 20 years and never saw this issue. This is a design defect. The sensors that warn the driver of obstacles may be on the edge of being too sensitive. In a few cases, a warning was issued when there was no apparent reason. Besides these issues, the car is an outstanding vehicle. It's a joy to take trips in because of seat comfort, environmental control, and the semi-autonomous driving on expressways."

Overall 2026 Mercedes-Benz S-Class Quality

User sentiment suggests the overall quality of the 2026 Mercedes-Benz S-Class is above average for its class. Owners rated the 2026 Mercedes-Benz S-Class quality a 4.8 out of 5.

2026 Mercedes-Benz S-Class Reliability

The 2026 Mercedes-Benz S-Class receives an average consumer rating of 3.6 overall and a 4.8 for reliability, which means owners consider its reliability to be above average.

Favorite 2026 S-Class Features

According to drivers of the 2026 S-Class, here are some of its best features:

  • Feel of high quality. Very solid.
  • Great for long trips
  • Quiet, great ride, good lane assist

2026 Mercedes-Benz S-Class MPG by Trim

2026 S-Class S 500 4MATIC - city 20 MPG - hwy 29 MPG

2026 S-Class S 580 4MATIC - city 17 MPG - hwy 27 MPG

2026 S-Class Safety

2026 Mercedes-Benz S-Class Safety Features

  • Child Door Locks
  • Child Seat Anchors
  • Driver Airbag
  • Passenger Airbag
  • Rear Side Airbag
  • Stability Control
  • Traction Control
  • Blind-Spot Alert
  • Collision Warning System
  • Driver Attention Assist Monitor
  • Driver Knee Airbag
  • Front Head Curtain Airbag
  • Front Side Airbag
  • Inflatable Seat Belts
  • Lane Departure Warning System
  • Rear Head Curtain Airbag
  • Rear Parking Sensors
  • Surround View Camera
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2026 Mercedes-Benz S-class Deals and Incentives

APR

3.99% APR | 36 months

Get 3.99% for 36 months on a new 2026 EQS 450 4MATIC Sedan.

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End Date: 01/02/2026
LEASE

$1559 /mo | 36 months | Due at Signing

Lease a new 2026 EQS 550 4MATIC SUV for $1,559 a month for 36 months with $10,453 due at signing.

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End Date: 01/02/2026
See All Current S-class Deals

2026 Mercedes-Benz S-Class
KBB.com Consumer Reviews

3.6
Consumer Rating
Based on 5 Consumer Reviews
Write a Review
100%Recommend this vehicle
2
0%
2
0%
Value
4.2
Performance
5.0
Quality
4.8
Comfort
5.0
Reliability
4.8
Styling
4.8

Trending Topics in KBB.com Consumer Reviews

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2026 Mercedes-Benz S-Class Styles

Style
Combined Fuel Economy
Horsepower
Engine
Cargo Capacity
Torque
0-60
Top Speed
Curb Weight
S 500 4MATIC
23 MPG
442 @ 5800 RPM
6-Cyl, MHEV, Turbo, 3.0 Liter
12.8 cu ft
413 lb-ft
4.5 seconds
130 mph
4696 lbs
S 580e 4MATIC
N/A
502 hp
6-Cyl, Hybrid, Turbo, 3.0 Liter
12.8 cu ft
553 lb-ft
4.3 seconds
130 mph
5465 lbs
S 580 4MATIC
20 MPG
496 hp
V8, MHEV, Twin Turbo, 4.0 Liter
12.8 cu ft
516 lb-ft
4.5 seconds
130 mph
4795 lbs
See Full Specs for All 2026 Mercedes-Benz S-class Styles
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Car Financing
101

Specifications

Dimensions, Weights & Capacities

Curb Weight
4696 lbs.
Fuel Capacity
20.0 gallons
Front Head Room
42.1 inches
Front Leg Room
41.4 inches
Max Seating Capacity
5
Minimum Ground Clearance
5.1 inches
Overall Length
209.5 inches
Front Shoulder Room
59.7 inches
Trunk or Cargo Capacity
12.8 cu.ft.
Wheel Base
126.6 inches
Width with mirrors
83.0 inches

Exterior

Adaptive Headlights
Available
Alloy Wheels
Available
Moon Roof/Sun Roof
Available
Number of Doors
4 doors
Panorama Moon Roof
Available
Power Folding Exterior Mirrors
Available
LED Headlights
Available
Rear Spoiler
Port Installed

Fuel Economy

City
20 mpg
Highway
29 mpg
Combined
23 mpg

Mechanical

Drivetrain
AWD
Transmission Type
Automatic
9 speed
Available
Recommended Fuel
Premium
Parking Assist System
Available

Performance

Horsepower
442 @ 5800 RPM
Torque
413 @ 2200 rpm
Engine
6-Cyl, MHEV, Turbo, 3.0 Liter
0 to 60
4.5 seconds
Top Speed
130 mph

Warranty

Basic
4 years / 50000 miles
Powertrain
4 years / 50000 miles
Corrosion
4 years / 50000 miles

Comfort & Convenience

  • Climate Control Air Conditioning
  • Climate Control Air Conditioning
  • Heated Steering Wheel
  • Integrated Garage Door Opener
  • Interior Ambient Lighting

Entertainment

  • Premium Radio
  • Satellite Radio
  • Bluetooth Streaming Audio

Interior

  • Leather-Wrapped Steering Wheel
  • Power Windows
  • Rear Window Defroster
  • Power Outlet
  • Steering Wheel Controls

Seating

  • Leather Seats
  • Heated Seats
  • Dual Power Front Seats
  • Power Driver's Seat

Security

  • Alarm System

Technology

  • Bluetooth Wireless Technology
  • Cruise Control
  • Hands Free Phone
  • Navigation System
  • Remote Keyless Entry
  • Internet Access
  • Proximity Sensing Keyless Entry
  • Remote Engine Start
  • Smartphone Interface
  • Touch Screen Monitor
  • USB Port
  • Voice Recognition System

2026 Mercedes-Benz S-Class Safety

Safety Features & Technology

  • Child Door Locks
  • Child Seat Anchors
  • Driver Airbag
  • Passenger Airbag
  • Rear Side Airbag
  • Stability Control
  • Traction Control
  • Blind-Spot Alert
  • Collision Warning System
  • Driver Attention Assist Monitor
  • Driver Knee Airbag
  • Front Head Curtain Airbag
  • Front Side Airbag
  • Inflatable Seat Belts
  • Lane Departure Warning System
  • Rear Head Curtain Airbag
  • Rear Parking Sensors
  • Surround View Camera

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Price
N/A
$133,995
$168,195
KBB.com Rating
N/A
N/A
3.3
Consumer Rating
3.6
4.3
4.4
Fuel Economy
City 20/Hwy 29/Comb 23 MPG
City 14/Hwy 21/Comb 16 MPG
City 13/Hwy 20/Comb 16 MPG
Fuel Type
Gas
N/A
N/A
Seating Capacity555
Basic Warranty
4 years or 50000 miles
4 years or 50000 miles
4 years or 50000 miles
Horsepower
442 @ 5800 RPM
621 @ 6000 RPM
580 @ 6750 RPM
Engine
6-Cyl, MHEV, Turbo, 3.0 Liter
V8, Twin Turbo, 4.0 Liter
V8, Twin Turbo, 3.8 Liter
Drivetrain
AWD
AWD
RWD

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The 2026 Mercedes-Benz S-Class was ranked one of the Highest Horsepower Sedans by KBB.com’s in-house editors based on performance, reliability, safety and more. Check out the entire list of Highest Horsepower Sedans to see how it compared to the competition. Read how we rate cars
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More Mercedes-Benz S-class News & Information

General
Thanks to Mercedes, Turquoise Lights Mean Self-Driving

A future of self-driving cars will introduce all kinds of new problems for society to solve. Among them: How are…

Sean Tucker December 19, 2023
General
Mercedes Hopes to Offer Hands-Free Driving This Year

Mercedes-Benz will offer a hands-free driving system that can take some tasks from the driver in the U.S. this year…

Sean Tucker February 25, 2022
Luxury Car
Flagship Mercedes S-Class Gets Hefty Price Hike, Standard All-Wheel Drive

You could argue that buyers in the large luxury sedan category don’t worry much over price. And Mercedes would back…

Sean Tucker December 18, 2020

FAQs

Is 2026 a good year for a Mercedes-Benz S-Class?

Owners of the vehicle give it 3.6 out of 5 stars. To find out if the 2026 S-Class is the right car for you, check out the pros and cons, trims, specs and options at Kelley Blue Book.

Is the Mercedes-Benz S-Class 2026 a good Sedan?

Owners of the vehicle give it 3.6 out of 5 stars. To find out if the 2026 S-Class is the right car for you, check out the pros and cons, trims, specs and options at Kelley Blue Book.

What is the MPG for a 2026 Mercedes-Benz S-Class?

The 2026 Mercedes-Benz S-Class gets 20 mpg in the city and 29 mpg on the highway.

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