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Specs of Mercedes-Benz S-class (W223, facelift 2026) S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC /2026/

Key specs

Mercedes-Benz S-class (W223, facelift 2026) S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC /Sedan 2026 - /

What is the body type of Mercedes-Benz S-class (W223, facelift 2026)?
Sedan, 4 Doors, 5 Seats
What is the fuel consumption and economy of Mercedes-Benz S-class (W223, facelift 2026) S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
8.1-8.9 l/100 km
29 - 26.4 US mpg
34.9 - 31.7 UK mpg
12.3 - 11.2 km/l
How environmentally friendly is Mercedes-Benz S-class S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
185-203 g/km CO2
Euro 6e-bis
How fast is 2026 S-class (W223, facelift 2026) S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
250 km/h | 155 mph
0-100 km/h: 4.9 sec
0-60 mph: 4.7 sec
What is the power output of Mercedes-Benz S-class Sedan 2026 S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
381 Hp, 560 Nm
413 lb.-ft.
What is the engine displacement of Mercedes-Benz S-class Sedan 2026 S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
3.0 l
2999 cm3
183.01 cu. in.
What is the number of cylinders in 2026 Mercedes-Benz S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
6, Inline
What is the drivetrain of Mercedes-Benz S-class (W223, facelift 2026) Sedan 2026 S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
All wheel drive (4x4). MHEV (Mild Hybrid Electric Vehicle, power-assist hybrid, battery-assisted hybrid vehicles, BAHV). The Internal combustion engine (ICE) and the electric motor permanently drive the four wheels of the car with the ability to work only in mixed mode.
What is the length of 2026 Mercedes-Benz S-class Sedan?
5194 mm
204.49 in.
What is the width of 2026 Mercedes-Benz S-class Sedan?
1921 mm
75.63 in.
What is the kerb weight of 2026 Mercedes-Benz S-class (W223, facelift 2026) S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
2090 kg
4608 lbs.
What is the maximum permissible mass of 2026 Mercedes-Benz S-class (W223, facelift 2026) S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
2825 kg
6228 lbs.
What is the trunk (boot) capacity of 2026 Mercedes-Benz S-class Sedan?
530 l
18.7 cu. ft.
What are the number of gears and the gearbox type of 2026 Mercedes-Benz S-class (W223, facelift 2026) S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC?
9, automatic transmission G-TRONIC
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General information

Brand
Mercedes-Benz
Model
S-class
Generation
S-class (W223, facelift 2026)
Modification (Engine)
S 450 (381 Hp) EQ Boost 4MATIC 9G-TRONIC
Start of production
January, 2026
Powertrain Architecture
MHEV (Mild Hybrid Electric Vehicle, power-assist hybrid, battery-assisted hybrid vehicles, BAHV)
Body type
Sedan
Seats
5
Doors
4
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Performance specs

Combined fuel consumption (WLTP)
8.1-8.9 l/100 km 29 - 26.4 US mpg
34.9 - 31.7 UK mpg
12.3 - 11.2 km/l
CO2 emissions (WLTP)
185-203 g/km
Fuel Type
Petrol (Gasoline)
Acceleration 0 - 100 km/h
4.9 sec
Acceleration 0 - 62 mph
4.9 sec
Acceleration 0 - 60 mph (Calculated by Auto-Data.net)
4.7 sec
Maximum speed
250 km/h, Electronically limited 155 mph
Emission standard
Euro 6e-bis
Weight-to-power ratio
5.5 kg/Hp, 182.3 Hp/tonne
Weight-to-torque ratio
3.7 kg/Nm, 267.9 Nm/tonne

Electric and hybrid car specs

Battery voltage
48 V
Battery technology
Lithium-ion (Li-Ion)

Electric motor 1

Electric motor power
23 Hp
Electric motor Torque
205 Nm 151 lb.-ft.
Electric motor location
Between the combustion engine and the transmission

Internal combustion engine specs

Power
381 Hp @ 5000-6100 rpm.
Power per litre
127 Hp/l
Torque
560 Nm @ 2000-4500 rpm. 413 lb.-ft. @ 2000-4500 rpm.
Engine layout
Front, Longitudinal
Engine Model/Code
M 256 Evo
Engine displacement
2999 cm3 183.01 cu. in.
Number of cylinders
6
Engine configuration
Inline
Cylinder Bore
83 mm 3.27 in.
Piston Stroke
92.35 mm 3.64 in.
Compression ratio
10.5:1
Number of valves per cylinder
4
Fuel injection system
Direct injection
Engine aspiration
Turbocharger and electrically driven compressor, Intercooler
Valvetrain
DOHC, CAMTRONIC
Engine systems
Start & Stop System
Particulate filter

Volume and weights

Kerb Weight
2090 kg 4608 lbs.
Max. weight
2825 kg 6228 lbs.
Max load
735 kg 1620 lbs.
Trunk (boot) space - minimum
530 l 18.7 cu. ft.
Fuel tank capacity
76 l 20.08 US gal | 16.72 UK gal
Max. roof load
100 kg 220 lbs.
Permitted trailer load with brakes (12%)
2100 kg 4630 lbs.
Permitted trailer load without brakes
750 kg 1653 lbs.

Dimensions

Length
5194 mm 204.49 in.
Width
1921 mm 75.63 in.
Width with mirrors folded
1986 mm 78.19 in.
Width including mirrors
2123 mm 83.58 in.
Height
1503 mm 59.17 in.
Wheelbase
3106 mm 122.28 in.
Front track
1660 mm 65.35 in.
Rear (Back) track
1688 mm 66.46 in.
Minimum turning circle (turning diameter)
11.6 m 38.06 ft.

Drivetrain, brakes and suspension specs

Drivetrain Architecture
The Internal combustion engine (ICE) and the electric motor permanently drive the four wheels of the car with the ability to work only in mixed mode.
Drive wheel
All wheel drive (4x4)
Number of gears and type of gearbox
9 gears, automatic transmission G-TRONIC
Front suspension
Independent multi-link suspension, Air suspension
Rear suspension
Independent multi-link suspension, Air suspension
Front brakes
Ventilated discs, 370 mm
Rear brakes
Ventilated discs, 320 mm
Assisting systems
ABS (Anti-lock braking system)
4-wheel steering (4WS, active rear steering)
Steering type
Steering rack and pinion
Power steering
Electric Steering
Tire size
235/55 R18; 255/45 R19
Wheel rim size
8J x 18; 8.5J x 19