Car comparison

Mercedes-Benz S-class (W223) · Facelift 2026 S 450dvsMercedes-Benz S-class (W222) · Facelift 2017 S 400d

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Mercedes-Benz S-class (W223) · Facelift 2026

S 450d

367 hp2989 ccDieselAWDAutomaticTwin-turboSedan2026-present
VS

Mercedes-Benz S-class (W222) · Facelift 2017

S 400d

340 hp2925 ccDieselAWDAutomaticTurbochargedSedan2017-2020

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Mercedes-Benz S-class (W223) Facelift 2026 S 450d

  • Quickest 0-100 km/h
    5.1 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    367 hp
    274 kW
  • Highest torque
    750 Nm
    553 lb-ft
  • Largest trunk
    510 L
  • Best overall score
    76/100
  • Best performance score
    76/100
  • Best practicality score
    76/100

Specification comparison

Specification comparison
ModelMercedes-BenzS-class (W223)Facelift 2026S 450dMercedes-BenzS-class (W222)Facelift 2017S 400d
Power
367hp274kW
340hp254kW
Torque
750Nm553lb-ft
700Nm516lb-ft
Curb weight
2,160kg4,762lb
1,985kg4,376lb
Gross weight
2,890kg6,371lb
2,760kg6,085lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
54.1s99% target: 262 km/h / 163 mph
Calculated
54.5s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.1s
5.2s
0-200 km/h
15.8s
Calculated
16.0s
Calculated
0-60 mph
4.9s
Calculated
5.0s
Calculated
Fuel consumption
6.9L/100 km34.1mpg US40.9mpg UK
5.7L/100 km41.3mpg US49.6mpg UK
Fuel consumption city-
6.9L/100 km34.1mpg US40.9mpg UK
Fuel consumption highway-
5L/100 km47mpg US56.5mpg UK
Quarter mile
13.1s
Calculated
13.2s
Calculated
Power-to-weight
170hp/t127kW/t77hp/1000 lb
Calculated
171hp/t128kW/t78hp/1000 lb
Calculated
Torque-to-weight
347Nm/t232lb-ft/ton
Calculated
353Nm/t236lb-ft/ton
Calculated
Estimated range
1,101km684mi
Calculated
1,228km763mi
Calculated
Displacement
2,989cc182cu in
2,925cc178cu in
Length
5,194mm204in
5,141mm202in
Width
1,921mm76in
1,905mm75in
Height
1,503mm59in
1,498mm59in
Wheelbase
3,106mm122in
3,035mm119in
Front track
1,660mm65in
1,630mm64in
Rear track
1,683mm66in
1,643mm65in
Trunk volume
510L
510L
Doors
4
4
Seats
5
4
Fuel tank
76L
70L
CO2 emissions-
150g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Mercedes-Benz S-class (W223) Facelift 2026 S 450dMercedes-Benz S-class (W222) Facelift 2017 S 400dPowerTorque
  • Mercedes-Benz S-class (W223) Facelift 2026 S 450d: Power / Torque
  • Mercedes-Benz S-class (W222) Facelift 2017 S 400d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzS-class (W223)Facelift 2026S 450d4,000 rpm1,350-2,800 rpm4,250 rpm
Mercedes-BenzS-class (W222)Facelift 2017S 400d3,600-4,400 rpm1,200-3,200 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzS-class (W223)Facelift 2026S 450dMercedes-BenzS-class (W222)Facelift 2017S 400d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
5.0 s
0-100 km/h
0-62 mph
5.1 s
5.2 s
0-200 km/h
0-124 mph
15.8 s
16.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.4 s
330 ft
101 m
5.9 s
5.9 s
1/8 mile
201 m
8.7 s
8.8 s
1000 ft
305 m
11.1 s
11.2 s
1/4 mile
402 m
13.1 s
13.2 s
Trap speed
1/4 mile
402 m
183 km/h
114 mph
182 km/h
113 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d
367 hp
274 kW
Mercedes-BenzS-class (W222)Facelift 2017S 400d
340 hp
254 kW

Mercedes-Benz S-class (W223) Facelift 2026 S 450d has 27 hp more than Mercedes-Benz S-class (W222) Facelift 2017 S 400d.

The biggest power difference is between Mercedes-Benz S-class (W222) Facelift 2017 S 400d and Mercedes-Benz S-class (W223) Facelift 2026 S 450d: 27 hp (20 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d
750 Nm
553 lb-ft
Mercedes-BenzS-class (W222)Facelift 2017S 400d
700 Nm
516 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d
2,160 kg
4,762 lb
Mercedes-BenzS-class (W222)Facelift 2017S 400d
1,985 kg
4,376 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzS-class (W222)Facelift 2017S 400d
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d5.1 s
Mercedes-BenzS-class (W222)Facelift 2017S 400d5.2 s

The biggest 0-100 km/h difference is between Mercedes-Benz S-class (W223) Facelift 2026 S 450d and Mercedes-Benz S-class (W222) Facelift 2017 S 400d: 0.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
Mercedes-BenzS-class (W222)Facelift 2017S 400d
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz S-class (W222) Facelift 2017 S 400d and Mercedes-Benz S-class (W223) Facelift 2026 S 450d: 1.2 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d
170 hp/t
127 kW/t
5.9 kg/hp
Mercedes-BenzS-class (W222)Facelift 2017S 400d
171 hp/t
128 kW/t
5.8 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
Mercedes-BenzS-class (W223)Facelift 2026S 450d
1,101 km
684 mi
Mercedes-BenzS-class (W222)Facelift 2017S 400d
1,228 km
763 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzS-class (W223)Facelift 2026S 450d
367 hp
274 kW
5.1 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzS-class (W222)Facelift 2017S 400d
340 hp
254 kW
5.2 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
Mercedes-BenzS-class (W223)Facelift 2026S 450d
Power
367 hp
274 kW
0-100 km/h5.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
5,194 mm
204.5 in
Height
1,503 mm
59.2 in
Mercedes-BenzS-class (W222)Facelift 2017S 400d
Power
340 hp
254 kW
0-100 km/h5.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
4 seats
Trunk
510 L
18.0 cu ft
Length
5,141 mm
202.4 in
Height
1,498 mm
59.0 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
Mercedes-BenzS-class (W223)Facelift 2026S 450d
Power
367 hp
274 kW
0-100 km/h5.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
Mercedes-BenzS-class (W222)Facelift 2017S 400d
Power
340 hp
254 kW
0-100 km/h5.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

Mercedes-Benz S-class (W223) Facelift 2026 S 450d is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
Mercedes-BenzS-class (W223)Facelift 2026S 450d
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
5.1 s
Mercedes-BenzS-class (W222)Facelift 2017S 400d
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
5.2 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Mercedes-BenzS-class (W223)Facelift 2026S 450d
170 hp/t
127 kW/t
5.9 kg/hp
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
Mercedes-BenzS-class (W222)Facelift 2017S 400d
171 hp/t
128 kW/t
5.8 kg/hp
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzS-class (W223)Facelift 2026S 450dMercedes-BenzS-class (W222)Facelift 2017S 400d
Power
367 hp
274 kW
340 hp
254 kW
Torque
750 Nm
553 lb-ft
700 Nm
516 lb-ft
Acceleration
5.1 s
5.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
2,160 kg
4,762 lb
1,985 kg
4,376 lb
Fuel consumption
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
5,194 mm
204.5 in
Height
1,503 mm
59.2 in
Doors/seats
4 doors
4 seats
Trunk
510 L
18.0 cu ft
Length
5,141 mm
202.4 in
Height
1,498 mm
59.0 in
Range score
1,101 km
684 mi
1,228 km
763 mi
CO2 score
-
150 g/km
Trunk score
510 L
18.0 cu ft
510 L
18.0 cu ft
Power-to-weight score
170 hp/t
127 kW/t
5.9 kg/hp
171 hp/t
128 kW/t
5.8 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleMercedes-Benz S-class (W223) Facelift 2026 S 450dMercedes-Benz S-class (W222) Facelift 2017 S 400d
Consumption6.9 L/100 km34.1 mpg US40.9 mpg UK5.7 L/100 km41.3 mpg US49.6 mpg UK
Cost / 100 km12.08 LC100 km9.98 LC100 km
Cost / 100 mi19.43 LC100 mi16.05 LC100 mi
Annual fuel used1,035 L273 US gal228 UK gal855 L226 US gal188 UK gal
Annual fuel cost1,811 LC/year1,496 LC/year

Head-to-head comparisons

Mercedes-Benz S-class (W223) Facelift 2026 S 450d

  • Has 27 hp more
  • Has 50 Nm more
  • Is 0.1 s quicker from 0-100 km/h

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Heaviest

Mercedes-Benz S-class (W222) Facelift 2017 S 400d

  • Is 175 kg lighter
  • Uses 1.2 L/100 km less fuel
  • Has 1 hp/t better power-to-weight
  • Has 127 km (79 mi) more estimated range

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

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Model
Generation
Engine or modification
Mercedes-Benz S-class (W223) S 450d
Mercedes-Benz S-class (W222) S 400d
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Mercedes-Benz S-class (W223) · Facelift 2026 S 450d vs Mercedes-Benz S-class (W222) · Facelift 2017 S 400d - car comparison - FastVsFaster