Car comparison

Mercedes-Benz S-class (W222) S 350dvsKia Optima IV GT 2.0 T-GDI

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

New comparison

Mercedes-Benz S-class (W222)

S 350d

258 hp2987 ccDieselRWDAutomaticTurbochargedSedan2016-2017
VS

Kia Optima IV

GT 2.0 T-GDI

245 hp1998 ccGasolineFWDAutomaticTwin-turboSedan2016-2018

Comparison overview

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

Best choices

Mercedes-Benz S-class (W222) S 350d

  • Quickest 0-100 km/h
    6.5 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    258 hp
    192 kW
  • Highest torque
    620 Nm
    457 lb-ft
  • Lowest combined fuel consumption
    5.9 L/100 km
    39.9 mpg US
    47.9 mpg UK
  • Lowest city consumption
    6.9 L/100 km
    34.1 mpg US
    40.9 mpg UK
  • Lowest highway consumption
    5.4 L/100 km
    43.6 mpg US
    52.3 mpg UK
  • Best estimated range
    1,186 km
    737 mi
  • Largest trunk
    510 L
  • Best overall score
    67/100
  • Best performance score
    65/100
  • Best economy score
    91/100

Specification comparison

Specification comparison
ModelMercedes-BenzS-class (W222)S 350dKiaOptima IVGT 2.0 T-GDI
Power
258hp192kW
245hp183kW
Torque
620Nm457lb-ft
353Nm260lb-ft
Curb weight
1,880kg4,145lb
1,680kg3,704lb
Gross weight
2,655kg5,853lb
2,120kg4,674lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Calculated
To 99% top speed
68.9s99% target: 257 km/h / 160 mph
Calculated
72.7s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
6.5s
7.4s
0-200 km/h
20.7s
Calculated
24.4s
Calculated
0-60 mph
6.2s
Calculated
7.1s
Calculated
Fuel consumption
5.9L/100 km39.9mpg US47.9mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption city
6.9L/100 km34.1mpg US40.9mpg UK
11.8L/100 km19.9mpg US23.9mpg UK
Fuel consumption highway
5.4L/100 km43.6mpg US52.3mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Quarter mile
14.4s
Calculated
15.2s
Calculated
Power-to-weight
137hp/t102kW/t62hp/1000 lb
Calculated
146hp/t109kW/t66hp/1000 lb
Calculated
Torque-to-weight
330Nm/t221lb-ft/ton
Calculated
210Nm/t141lb-ft/ton
Calculated
Estimated range
1,186km737mi
Calculated
854km530mi
Calculated
Displacement
2,987cc182cu in
1,998cc122cu in
Length
5,116mm201in
4,855mm191in
Width
1,899mm75in
1,860mm73in
Height
1,496mm59in
1,465mm58in
Wheelbase
3,035mm119in
2,805mm110in
Front track
1,624mm64in
1,597mm63in
Rear track
1,637mm64in
1,608mm63in
Trunk volume
510L
510L
Doors
4
4
Seats
4
5
Fuel tank
70L
70L
CO2 emissions-
191g/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 (W222) S 350dKia Optima IV GT 2.0 T-GDIPowerTorque
  • Mercedes-Benz S-class (W222) S 350d: Power / Torque
  • Kia Optima IV GT 2.0 T-GDI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzS-class (W222)S 350d3,400 rpm1,600-2,400 rpm3,650 rpm
KiaOptima IVGT 2.0 T-GDI6,000 rpm1,350-4,000 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzS-class (W222)S 350dKiaOptima IVGT 2.0 T-GDI
Acceleration checkpoints
0-60 mph
0-97 km/h
6.2 s
7.1 s
0-100 km/h
0-62 mph
6.5 s
7.4 s
0-200 km/h
0-124 mph
20.7 s
24.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Likely limited
Drag race simulation
60 ft
18 m
2.6 s
2.8 s
330 ft
101 m
6.5 s
6.9 s
1/8 mile
201 m
9.6 s
10.2 s
1000 ft
305 m
12.3 s
12.9 s
1/4 mile
402 m
14.4 s
15.2 s
Trap speed
1/4 mile
402 m
168 km/h
104 mph
160 km/h
100 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W222)S 350d
258 hp
192 kW
KiaOptima IVGT 2.0 T-GDI
245 hp
183 kW

Mercedes-Benz S-class (W222) S 350d has 13 hp more than Kia Optima IV GT 2.0 T-GDI.

The biggest power difference is between Kia Optima IV GT 2.0 T-GDI and Mercedes-Benz S-class (W222) S 350d: 13 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W222)S 350d
620 Nm
457 lb-ft
KiaOptima IVGT 2.0 T-GDI
353 Nm
260 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W222)S 350d
1,880 kg
4,145 lb
KiaOptima IVGT 2.0 T-GDI
1,680 kg
3,704 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 (W222)S 350d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
KiaOptima IVGT 2.0 T-GDI
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 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 (W222)S 350d6.5 s
KiaOptima IVGT 2.0 T-GDI7.4 s

The biggest 0-100 km/h difference is between Mercedes-Benz S-class (W222) S 350d and Kia Optima IV GT 2.0 T-GDI: 0.9 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 (W222)S 350d
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
KiaOptima IVGT 2.0 T-GDI
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz S-class (W222) S 350d and Kia Optima IV GT 2.0 T-GDI: 2.3 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 (W222)S 350d
137 hp/t
102 kW/t
7.3 kg/hp
KiaOptima IVGT 2.0 T-GDI
146 hp/t
109 kW/t
6.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W222)S 350d
1,186 km
737 mi
KiaOptima IVGT 2.0 T-GDI
854 km
530 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzS-class (W222)S 350d
258 hp
192 kW
6.5 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
KiaOptima IVGT 2.0 T-GDI
245 hp
183 kW
7.4 s
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 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 (W222)S 350d
Power
258 hp
192 kW
0-100 km/h6.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
4 seats
Trunk
510 L
18.0 cu ft
Length
5,116 mm
201.4 in
Height
1,496 mm
58.9 in
KiaOptima IVGT 2.0 T-GDI
Power
245 hp
183 kW
0-100 km/h7.4 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
4,855 mm
191.1 in
Height
1,465 mm
57.7 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 (W222)S 350d
Power
258 hp
192 kW
0-100 km/h6.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
KiaOptima IVGT 2.0 T-GDI
Power
245 hp
183 kW
0-100 km/h7.4 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Mercedes-Benz S-class (W222) S 350d 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 (W222)S 350d
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
6.5 s
KiaOptima IVGT 2.0 T-GDI
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
7.4 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 (W222)S 350d
137 hp/t
102 kW/t
7.3 kg/hp
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
KiaOptima IVGT 2.0 T-GDI
146 hp/t
109 kW/t
6.9 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzS-class (W222)S 350dKiaOptima IVGT 2.0 T-GDI
Power
258 hp
192 kW
245 hp
183 kW
Torque
620 Nm
457 lb-ft
353 Nm
260 lb-ft
Acceleration
6.5 s
7.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Lightness
1,880 kg
4,145 lb
1,680 kg
3,704 lb
Fuel consumption
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Practicality
Doors/seats
4 doors
4 seats
Trunk
510 L
18.0 cu ft
Length
5,116 mm
201.4 in
Height
1,496 mm
58.9 in
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
4,855 mm
191.1 in
Height
1,465 mm
57.7 in
Range score
1,186 km
737 mi
854 km
530 mi
CO2 score
-
191 g/km
Trunk score
510 L
18.0 cu ft
510 L
18.0 cu ft
Power-to-weight score
137 hp/t
102 kW/t
7.3 kg/hp
146 hp/t
109 kW/t
6.9 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 (W222) S 350dKia Optima IV GT 2.0 T-GDI
Consumption5.9 L/100 km39.9 mpg US47.9 mpg UK8.2 L/100 km28.7 mpg US34.4 mpg UK
Cost / 100 km10.33 LC100 km14.35 LC100 km
Cost / 100 mi16.62 LC100 mi23.09 LC100 mi
Annual fuel used885 L234 US gal195 UK gal1,230 L325 US gal271 UK gal
Annual fuel cost1,549 LC/year2,153 LC/year

Head-to-head comparisons

Mercedes-Benz S-class (W222) S 350d

  • Has 13 hp more
  • Has 267 Nm more
  • Is 0.9 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Uses 2.3 L/100 km less fuel
  • Has 333 km (207 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest

Kia Optima IV GT 2.0 T-GDI

  • Is 200 kg lighter
  • Has 9 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz S-class (W222) S 350d
Kia Optima IV GT 2.0 T-GDI
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