Car comparison

Kia Optima IV · Facelift 2018 2.0 T-GDIvsJaguar XJ (X351) · Facelift 2015 2.0

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

New comparison

Kia Optima IV · Facelift 2018

2.0 T-GDI

238 hp1998 ccGasolineFWDAutomaticTurbochargedSedan2018-2020
VS

Jaguar XJ (X351) · Facelift 2015

2.0

240 hp1999 ccGasolineRWDAutomaticTurbochargedSedan2015-2018

Comparison overview

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

Best choices

Kia Optima IV Facelift 2018 2.0 T-GDI

  • Quickest 0-100 km/h
    7.4 s
  • Fastest top speed
    250 km/h
    155 mph Unrestricted
    240 km/h
    149 mph Restricted
  • Highest torque
    353 Nm
    260 lb-ft
  • Lightest
    1,680 kg
    3,704 lb
  • Best power-to-weight
    142 hp/t
    106 kW/t
    7.1 kg/hp
  • Best overall score
    62/100
  • Best performance score
    55/100

Jaguar XJ (X351) Facelift 2015 2.0

  • Most powerful
    240 hp
    179 kW
  • Lowest combined fuel consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 mpg UK
  • Best estimated range
    952 km
    592 mi
  • Best economy score
    84/100
  • Best practicality score
    78/100

Specification comparison

Specification comparison
ModelKiaOptima IVFacelift 20182.0 T-GDIJaguarXJ (X351)Facelift 20152.0
Power
238hp177kW
240hp179kW
Torque
353Nm260lb-ft
340Nm251lb-ft
Curb weight
1,680kg3,704lb
1,735kg3,825lb
Gross weight
2,120kg4,674lb
-
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Calculated
241 km/h
150 mph
To 99% top speed
72.9s99% target: 248 km/h / 154 mph
Calculated
80.2s99% target: 239 km/h / 148 mph
Calculated
0-100 km/h
7.4s
7.9s
0-200 km/h
24.4s
Calculated
28.6s
Calculated
0-60 mph
7.1s
Calculated
7.5s
Calculated
Fuel consumption
9.3L/100 km25.3mpg US30.4mpg UK
8.4L/100 km28mpg US33.6mpg UK
Fuel consumption city
13.2L/100 km17.8mpg US21.4mpg UK
-
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
-
Quarter mile
15.2s
Calculated
15.7s
Calculated
Power-to-weight
142hp/t106kW/t64hp/1000 lb
Calculated
138hp/t103kW/t63hp/1000 lb
Calculated
Torque-to-weight
210Nm/t141lb-ft/ton
Calculated
196Nm/t131lb-ft/ton
Calculated
Estimated range
753km468mi
Calculated
952km592mi
Calculated
Displacement
1,998cc122cu in
1,999cc122cu in
Length
4,855mm191in
5,130mm202in
Width
1,860mm73in
1,899mm75in
Height
1,475mm58in
1,460mm57in
Wheelbase
2,805mm110in
3,032mm119in
Front track
1,607mm63in
1,626mm64in
Rear track
1,614mm64in
1,604mm63in
Trunk volume
510L
-
Doors
4
4
Seats
5
5
Fuel tank
70L
80L
CO2 emissions-
199g/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.

Kia Optima IV Facelift 2018 2.0 T-GDIJaguar XJ (X351) Facelift 2015 2.0PowerTorque
  • Kia Optima IV Facelift 2018 2.0 T-GDI: Power / Torque
  • Jaguar XJ (X351) Facelift 2015 2.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
KiaOptima IVFacelift 20182.0 T-GDI6,000 rpm1,350-4,000 rpm6,250 rpm
JaguarXJ (X351)Facelift 20152.05,500 rpm2,000-4,000 rpm5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricKiaOptima IVFacelift 20182.0 T-GDIJaguarXJ (X351)Facelift 20152.0
Acceleration checkpoints
0-60 mph
0-97 km/h
7.1 s
7.5 s
0-100 km/h
0-62 mph
7.4 s
7.9 s
0-200 km/h
0-124 mph
24.4 s
28.6 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Likely limited
241 km/h
150 mph
Drag race simulation
60 ft
18 m
2.8 s
2.8 s
330 ft
101 m
6.9 s
7.0 s
1/8 mile
201 m
10.2 s
10.4 s
1000 ft
305 m
12.9 s
13.3 s
1/4 mile
402 m
15.2 s
15.7 s
Trap speed
1/4 mile
402 m
160 km/h
99 mph
153 km/h
95 mph

Power comparison

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

Chart data table
VehicleValue
KiaOptima IVFacelift 20182.0 T-GDI
238 hp
177 kW
JaguarXJ (X351)Facelift 20152.0
240 hp
179 kW

Jaguar XJ (X351) Facelift 2015 2.0 has 2 hp more than Kia Optima IV Facelift 2018 2.0 T-GDI.

The biggest power difference is between Kia Optima IV Facelift 2018 2.0 T-GDI and Jaguar XJ (X351) Facelift 2015 2.0: 2 hp (1 kW).

Torque comparison

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

Chart data table
VehicleValue
KiaOptima IVFacelift 20182.0 T-GDI
353 Nm
260 lb-ft
JaguarXJ (X351)Facelift 20152.0
340 Nm
251 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
KiaOptima IVFacelift 20182.0 T-GDI
1,680 kg
3,704 lb
JaguarXJ (X351)Facelift 20152.0
1,735 kg
3,825 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
KiaOptima IVFacelift 20182.0 T-GDI
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
JaguarXJ (X351)Facelift 20152.0
241 km/h
150 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
KiaOptima IVFacelift 20182.0 T-GDI7.4 s
JaguarXJ (X351)Facelift 20152.07.9 s

Although Jaguar XJ (X351) Facelift 2015 2.0 has more power, Kia Optima IV Facelift 2018 2.0 T-GDI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Kia Optima IV Facelift 2018 2.0 T-GDI and Jaguar XJ (X351) Facelift 2015 2.0: 0.5 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
KiaOptima IVFacelift 20182.0 T-GDI
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
JaguarXJ (X351)Facelift 20152.0
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

The biggest fuel consumption difference is between Jaguar XJ (X351) Facelift 2015 2.0 and Kia Optima IV Facelift 2018 2.0 T-GDI: 0.9 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
KiaOptima IVFacelift 20182.0 T-GDI
142 hp/t
106 kW/t
7.1 kg/hp
JaguarXJ (X351)Facelift 20152.0
138 hp/t
103 kW/t
7.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
KiaOptima IVFacelift 20182.0 T-GDI
753 km
468 mi
JaguarXJ (X351)Facelift 20152.0
952 km
592 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
KiaOptima IVFacelift 20182.0 T-GDI
238 hp
177 kW
7.4 s
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
JaguarXJ (X351)Facelift 20152.0
240 hp
179 kW
7.9 s
241 km/h
150 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
KiaOptima IVFacelift 20182.0 T-GDI
Power
238 hp
177 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
1,475 mm
58.1 in
JaguarXJ (X351)Facelift 20152.0
Power
240 hp
179 kW
0-100 km/h7.9 s
Top speed
241 km/h
150 mph
Doors/seats
4 doors
5 seats
Trunk-
Length
5,130 mm
202.0 in
Height
1,460 mm
57.5 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
KiaOptima IVFacelift 20182.0 T-GDI
Power
238 hp
177 kW
0-100 km/h7.4 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
JaguarXJ (X351)Facelift 20152.0
Power
240 hp
179 kW
0-100 km/h7.9 s
Top speed
241 km/h
150 mph
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Kia Optima IV Facelift 2018 2.0 T-GDI 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
KiaOptima IVFacelift 20182.0 T-GDI
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
7.4 s
JaguarXJ (X351)Facelift 20152.0
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
7.9 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
KiaOptima IVFacelift 20182.0 T-GDI
142 hp/t
106 kW/t
7.1 kg/hp
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
JaguarXJ (X351)Facelift 20152.0
138 hp/t
103 kW/t
7.2 kg/hp
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleKiaOptima IVFacelift 20182.0 T-GDIJaguarXJ (X351)Facelift 20152.0
Power
238 hp
177 kW
240 hp
179 kW
Torque
353 Nm
260 lb-ft
340 Nm
251 lb-ft
Acceleration
7.4 s
7.9 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
241 km/h
150 mph
Lightness
1,680 kg
3,704 lb
1,735 kg
3,825 lb
Fuel consumption
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
4,855 mm
191.1 in
Height
1,475 mm
58.1 in
Doors/seats
4 doors
5 seats
Trunk-
Length
5,130 mm
202.0 in
Height
1,460 mm
57.5 in
Range score
753 km
468 mi
952 km
592 mi
CO2 score
-
199 g/km
Trunk score
510 L
18.0 cu ft
-
Power-to-weight score
142 hp/t
106 kW/t
7.1 kg/hp
138 hp/t
103 kW/t
7.2 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
VehicleKia Optima IV Facelift 2018 2.0 T-GDIJaguar XJ (X351) Facelift 2015 2.0
Consumption9.3 L/100 km25.3 mpg US30.4 mpg UK8.4 L/100 km28 mpg US33.6 mpg UK
Cost / 100 km16.28 LC100 km14.70 LC100 km
Cost / 100 mi26.19 LC100 mi23.66 LC100 mi
Annual fuel used1,395 L369 US gal307 UK gal1,260 L333 US gal277 UK gal
Annual fuel cost2,441 LC/year2,205 LC/year

Head-to-head comparisons

Kia Optima IV Facelift 2018 2.0 T-GDI

  • Has 13 Nm more
  • Is 55 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 9 km/h (6 mph) higher top speed
  • Has 3 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Highest torque
  • Lightest
  • Best power-to-weight ratio

Cons

  • Lowest power
  • Highest combined fuel consumption

Jaguar XJ (X351) Facelift 2015 2.0

  • Has 2 hp more
  • Uses 0.9 L/100 km less fuel
  • Has 200 km (124 mi) more estimated range

Pros

  • Most powerful
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Kia Optima IV 2.0 T-GDI
Jaguar XJ (X351) 2.0
Compare selected cars
2 vehicles selected

Popular comparisons

2.0 T-GDI
2.0 D5
VS
KiaOptima IVFacelift 20182.0 T-GDIvsVolvoS902.0 D5
2.0
4.2 V8
VS
JaguarXJ (X351)Facelift 20152.0vsJaguarXJ Sovereign (X358)4.2 V8
2.0 T-GDI
1.8 TCe
VS
KiaOptima IVFacelift 20182.0 T-GDIvsRenaultTalisman1.8 TCe
2.0
4.2 V8
VS
JaguarXJ (X351)Facelift 20152.0vsJaguarXJ (X358)4.2 V8
2.0 T-GDI
25d
VS
KiaOptima IVFacelift 20182.0 T-GDIvsJaguarXF (X260)25d
2.0
4.2 V8 32V L
VS
JaguarXJ (X351)Facelift 20152.0vsJaguarXJ (X350)4.2 V8 32V L
2.0 T-GDI
Redline 550T
VS
KiaOptima IVFacelift 20182.0 T-GDIvsChevroletMalibu (XL)Facelift 2019Redline 550T
2.0
6.0 V12 Classic
VS
JaguarXJ (X351)Facelift 20152.0vsJaguarXJ (X300)6.0 V12 Classic
2.0 T-GDI
2.0 TDI
VS
KiaOptima IVFacelift 20182.0 T-GDIvsVolkswagenPassat (B8)Facelift 20192.0 TDI
2.0
5.0 V8
VS
JaguarXJ (X351)Facelift 20152.0vsJaguarXJ (X351)5.0 V8
2.0 T-GDI
E 300d
VS
KiaOptima IVFacelift 20182.0 T-GDIvsMercedes-BenzE-class (W213)E 300d
2.0
R 4.0 V8 32V
VS
JaguarXJ (X351)Facelift 20152.0vsJaguarXJ (X308)R 4.0 V8 32V
Kia Optima IV · Facelift 2018 2.0 T-GDI vs Jaguar XJ (X351) · Facelift 2015 2.0 - car comparison - FastVsFaster