Car comparison

Jaguar XJ (X351) · Facelift 2015 3.0 V6vsInfiniti Q70 · Facelift 2014 3.7 V6

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

New comparison

Jaguar XJ (X351) · Facelift 2015

3.0 V6

340 hp2995 ccGasolineRWDAutomaticSuperchargedSedan2015-2018
VS

Infiniti Q70 · Facelift 2014

3.7 V6

320 hp3696 ccGasolineRWDAutomaticNaturally aspiratedSedan2014-2018

Comparison overview

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

Best choices

Jaguar XJ (X351) Facelift 2015 3.0 V6

  • Quickest 0-100 km/h
    5.9 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    450 Nm
    332 lb-ft
  • Best power-to-weight
    193 hp/t
    144 kW/t
    5.2 kg/hp
  • Lowest combined fuel consumption
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Best estimated range
    879 km
    546 mi
  • Best overall score
    71/100
  • Best performance score
    67/100
  • Best economy score
    82/100
  • Best practicality score
    78/100

Specification comparison

Specification comparison
ModelJaguarXJ (X351)Facelift 20153.0 V6InfinitiQ70Facelift 20143.7 V6
Power
340hp254kW
320hp239kW
Torque
450Nm332lb-ft
360Nm266lb-ft
Curb weight
1,765kg3,891lb
1,751kg3,860lb
Gross weight-
2,310kg5,093lb
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
62.9s99% target: 262 km/h / 163 mph
Calculated
63.6s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.9s
6.2s
0-200 km/h
18.3s
Calculated
18.9s
Calculated
0-60 mph
5.6s
Calculated
5.9s
Calculated
Fuel consumption
9.1L/100 km25.8mpg US31.0mpg UK
10.8L/100 km21.8mpg US26.2mpg UK
Fuel consumption city-
15.8L/100 km14.9mpg US17.9mpg UK
Fuel consumption highway-
7.9L/100 km29.8mpg US35.8mpg UK
Quarter mile
13.9s
Calculated
14.1s
Calculated
Power-to-weight
193hp/t144kW/t87hp/1000 lb
Calculated
183hp/t136kW/t83hp/1000 lb
Calculated
Torque-to-weight
255Nm/t171lb-ft/ton
Calculated
206Nm/t138lb-ft/ton
Calculated
Estimated range
879km546mi
Calculated
741km460mi
Calculated
Displacement
2,995cc183cu in
3,696cc226cu in
Length
5,130mm202in
4,980mm196in
Width
1,899mm75in
1,845mm73in
Height
1,460mm57in
1,493mm59in
Wheelbase
3,032mm119in
2,900mm114in
Front track
1,626mm64in
1,575mm62in
Rear track
1,604mm63in
1,570mm62in
Trunk volume-
500L
Doors
4
4
Seats
5
5
Fuel tank
80L
80L
CO2 emissions
211g/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.

Jaguar XJ (X351) Facelift 2015 3.0 V6Infiniti Q70 Facelift 2014 3.7 V6PowerTorque
  • Jaguar XJ (X351) Facelift 2015 3.0 V6: Power / Torque
  • Infiniti Q70 Facelift 2014 3.7 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
JaguarXJ (X351)Facelift 20153.0 V66,500 rpm3,500-5,000 rpm6,750 rpm
InfinitiQ70Facelift 20143.7 V67,000 rpm5,200 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricJaguarXJ (X351)Facelift 20153.0 V6InfinitiQ70Facelift 20143.7 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.6 s
5.9 s
0-100 km/h
0-62 mph
5.9 s
6.2 s
0-200 km/h
0-124 mph
18.3 s
18.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.5 s
2.6 s
330 ft
101 m
6.3 s
6.4 s
1/8 mile
201 m
9.2 s
9.5 s
1000 ft
305 m
11.8 s
12.0 s
1/4 mile
402 m
13.9 s
14.1 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
173 km/h
108 mph

Power comparison

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

Chart data table
VehicleValue
JaguarXJ (X351)Facelift 20153.0 V6
340 hp
254 kW
InfinitiQ70Facelift 20143.7 V6
320 hp
239 kW

Jaguar XJ (X351) Facelift 2015 3.0 V6 has 20 hp more than Infiniti Q70 Facelift 2014 3.7 V6.

The biggest power difference is between Infiniti Q70 Facelift 2014 3.7 V6 and Jaguar XJ (X351) Facelift 2015 3.0 V6: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
JaguarXJ (X351)Facelift 20153.0 V6
450 Nm
332 lb-ft
InfinitiQ70Facelift 20143.7 V6
360 Nm
266 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
JaguarXJ (X351)Facelift 20153.0 V6
1,765 kg
3,891 lb
InfinitiQ70Facelift 20143.7 V6
1,751 kg
3,860 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
JaguarXJ (X351)Facelift 20153.0 V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
InfinitiQ70Facelift 20143.7 V6
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
JaguarXJ (X351)Facelift 20153.0 V65.9 s
InfinitiQ70Facelift 20143.7 V66.2 s

The biggest 0-100 km/h difference is between Jaguar XJ (X351) Facelift 2015 3.0 V6 and Infiniti Q70 Facelift 2014 3.7 V6: 0.3 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
JaguarXJ (X351)Facelift 20153.0 V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
InfinitiQ70Facelift 20143.7 V6
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

The biggest fuel consumption difference is between Jaguar XJ (X351) Facelift 2015 3.0 V6 and Infiniti Q70 Facelift 2014 3.7 V6: 1.7 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
JaguarXJ (X351)Facelift 20153.0 V6
193 hp/t
144 kW/t
5.2 kg/hp
InfinitiQ70Facelift 20143.7 V6
183 hp/t
136 kW/t
5.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
JaguarXJ (X351)Facelift 20153.0 V6
879 km
546 mi
InfinitiQ70Facelift 20143.7 V6
741 km
460 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
JaguarXJ (X351)Facelift 20153.0 V6
340 hp
254 kW
5.9 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
InfinitiQ70Facelift 20143.7 V6
320 hp
239 kW
6.2 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
JaguarXJ (X351)Facelift 20153.0 V6
Power
340 hp
254 kW
0-100 km/h5.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk-
Length
5,130 mm
202.0 in
Height
1,460 mm
57.5 in
InfinitiQ70Facelift 20143.7 V6
Power
320 hp
239 kW
0-100 km/h6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,980 mm
196.1 in
Height
1,493 mm
58.8 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
JaguarXJ (X351)Facelift 20153.0 V6
Power
340 hp
254 kW
0-100 km/h5.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
InfinitiQ70Facelift 20143.7 V6
Power
320 hp
239 kW
0-100 km/h6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

Jaguar XJ (X351) Facelift 2015 3.0 V6 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
JaguarXJ (X351)Facelift 20153.0 V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
5.9 s
InfinitiQ70Facelift 20143.7 V6
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
6.2 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
JaguarXJ (X351)Facelift 20153.0 V6
193 hp/t
144 kW/t
5.2 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
InfinitiQ70Facelift 20143.7 V6
183 hp/t
136 kW/t
5.5 kg/hp
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleJaguarXJ (X351)Facelift 20153.0 V6InfinitiQ70Facelift 20143.7 V6
Power
340 hp
254 kW
320 hp
239 kW
Torque
450 Nm
332 lb-ft
360 Nm
266 lb-ft
Acceleration
5.9 s
6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,765 kg
3,891 lb
1,751 kg
3,860 lb
Fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk-
Length
5,130 mm
202.0 in
Height
1,460 mm
57.5 in
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,980 mm
196.1 in
Height
1,493 mm
58.8 in
Range score
879 km
546 mi
741 km
460 mi
CO2 score
211 g/km
-
Trunk score
-
500 L
17.7 cu ft
Power-to-weight score
193 hp/t
144 kW/t
5.2 kg/hp
183 hp/t
136 kW/t
5.5 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
VehicleJaguar XJ (X351) Facelift 2015 3.0 V6Infiniti Q70 Facelift 2014 3.7 V6
Consumption9.1 L/100 km25.8 mpg US31 mpg UK10.8 L/100 km21.8 mpg US26.2 mpg UK
Cost / 100 km15.92 LC100 km18.90 LC100 km
Cost / 100 mi25.63 LC100 mi30.42 LC100 mi
Annual fuel used1,365 L361 US gal300 UK gal1,620 L428 US gal356 UK gal
Annual fuel cost2,389 LC/year2,835 LC/year

Head-to-head comparisons

Jaguar XJ (X351) Facelift 2015 3.0 V6

  • Has 20 hp more
  • Has 90 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Uses 1.7 L/100 km less fuel
  • Has 10 hp/t better power-to-weight
  • Has 138 km (86 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 power-to-weight ratio
  • Best estimated range

Cons

  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
Jaguar XJ (X351) 3.0 V6
Infiniti Q70 3.7 V6
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2 vehicles selected

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