Mercedes2026 S 450 e Specs

2026 (W223) Mercedes S 450 e Specs & Performance

2026, 2027 (W223)

Tech Specs Summary


3 L Inline 6 Turbo PHEV

155 mph

5.7 seconds

429 hp

106.9 mpg

4 Doors

5 Seats

12.2 ft3
lb
5,225 lbs
Front - RWD

Performance

Performance
Top Speed
155 mph
0-62 mph
5.7 seconds
0-60 mph
5.5 seconds
Power-to-Weight
12.17 lb/hp
Combined Power
429 hp
Combined Torque
502 lb·ft

Gas Mileage

Gas Mileage
Combined
106.9 mpg
Tailpipe CO2
80 g/Mile

Electric Powertrain - Plug-in Hybrid

Electric Powertrain - Plug-in Hybrid
Peak Power
161 hp
163 ps
Peak Output
120 kW
Peak Torque
354 lb·ft
480 N·m
E-Mode
29.9 kWh/100mi.
18.6 kWh/100km
E-Mode MPGe
112.6 MPGe
E-Mode Range
73 Miles
Battery Size
21.96 kWh
Charge Time (est.)
4.1 Hrs (7kW)
2.6 Hrs (11kW)

Gasoline Engine - Plug-in Hybrid

Gasoline Engine - Plug-in Hybrid
Capacity
3 Liter
183 in3
Layout
Inline 6
Aspiration
Turbo
Peak Power
322 hp @ 4,250 RPM
326 ps @ 4,250 RPM
Peak Torque
398 lb·ft @ 2,200 RPM
540 N·m @ 2,200 RPM
Valvetrain
DOHC
Valves/Cylinder
4 (24v Total)
Fuel Delivery
Direct Injection
Position
Front Engine
Orientation
Longitudinal
Fuel
Gasoline
Fuel Tank Capacity
17.7 Gallons

More Engine Specs

More Engine Specs
Engine Name
M256 E30
Compression Ratio
10.5:1
Bore x Stroke
3.268 x 3.636 in
Bore-Stroke Ratio
0.9:1
Under-Square
Specific Output
1.75 hp/in3
Power/Cylinder
54 hp
Cylinder Volume
30.5 in3
BMEP
328.2 PSI
22.6 Bar

Drivetrain & Chassis

Drivetrain & Chassis
Driven Wheels
RWD
Rear-wheel Drive
Transmission (AT)
9 Speeds
Tyre Sizes
255/45R19
Front Suspension
Multi-Link
Rear Suspension
Multi-Link
Front Brakes
Vented Disc
Rear Brakes
Vented Disc

Dimensions & Practicality

Dimensions & Practicality
Body
Luxury Sedan
Door Count
4
Seat Count
5
Luggage Space
12.2 ft3
Turning Radius
37.4 ft
Curb Weight
5,225 lbs
Gross Weight
6,724 lbs
Maximum Payload
1,499 lbs
Length
204.5 in
Width
75.6 in
Height
59.2 in
Wheelbase
122.3 in
Front Track
65.2 in
Rear Track
65 in
★★★★★
★★★★★
3.9

Performance Rating2.6
Environment Rating3.4
Practicality Rating2.6

Pros & Cons vs Rivals

Performance
Environment
Practicality
Luggage
City Driving
Road Trips

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2026 Mercedes S 450 e Rankings

Fastest Mercedes #90 / 2.3K
Best MPG Mercedes #91 / 2.3K
Best MPG Sedans #151 / 5K
Fastest Sedans #212 / 5K
Top BHP Mercedes #294 / 2.3K
Top lb·ft Mercedes #309 / 2.3K
Best MPG Plug-In Hybrid #314 / 400+
Most Powerful Sedans #333 / 5K
Top HP/cu in Mercedes #405 / 2.2K
Top Power/Weight Mercedes #460 / 2.3K
Best 0-62 mph Mercedes #494 / 2.3K
Quickest 0-62 Sedans #657 / 5K
Best MPG #940 / 23K
Most Powerful #1,647 / 23K
Fastest #1,788 / 23K
Quickest 0-62 mph #3,199 / 23K
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