Car comparison

Infiniti Q50 · Facelift 2017 3.5vsJaguar XJ (X351) · Facelift 2015 3.0d V6

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

New comparison

Infiniti Q50 · Facelift 2017

3.5

306 hp3498 ccGasolineAWDAutomaticSedan2017-present
VS

Jaguar XJ (X351) · Facelift 2015

3.0d V6

300 hp2993 ccDieselRWDAutomaticTurbochargedSedan2015-2019

Comparison overview

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

Best choices

Jaguar XJ (X351) Facelift 2015 3.0d V6

  • Highest torque
    700 Nm
    516 lb-ft
  • Lightest
    1,835 kg
    4,045 lb
  • Lowest combined fuel consumption
    5.7 L/100 km
    41.3 mpg US
    49.6 mpg UK
  • Lowest city consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Lowest highway consumption
    5.2 L/100 km
    45.2 mpg US
    54.3 mpg UK
  • Lowest CO2 emissions
    149 g/km
  • Best estimated range
    1,351 km
    839 mi
  • Best overall score
    71/100
  • Best performance score
    68/100
  • Best economy score
    91/100
  • Best practicality score
    78/100

Infiniti Q50 Facelift 2017 3.5

  • Quickest 0-100 km/h
    5.4 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    306 hp
    228 kW
  • Best power-to-weight
    164 hp/t
    123 kW/t
    6.1 kg/hp

Specification comparison

Specification comparison
ModelInfinitiQ50Facelift 20173.5JaguarXJ (X351)Facelift 20153.0d V6
Power
306hp228kW
300hp224kW
Torque
350Nm258lb-ft
700Nm516lb-ft
Curb weight
1,861kg4,103lb
1,835kg4,045lb
Gross weight-
2,400kg5,291lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
55.9s99% target: 262 km/h / 163 mph
Calculated
67.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.4s
6.2s
0-200 km/h
16.5s
Calculated
20.1s
Calculated
0-60 mph
5.2s
Calculated
5.9s
Calculated
Fuel consumption
6.8L/100 km34.6mpg US41.5mpg UK
5.7L/100 km41.3mpg US49.6mpg UK
Fuel consumption city
9.6L/100 km24.5mpg US29.4mpg UK
7L/100 km33.6mpg US40.4mpg UK
Fuel consumption highway
5.3L/100 km44.4mpg US53.3mpg UK
5.2L/100 km45.2mpg US54.3mpg UK
Quarter mile
13.4s
Calculated
14.2s
Calculated
Power-to-weight
164hp/t123kW/t75hp/1000 lb
Calculated
163hp/t122kW/t74hp/1000 lb
Calculated
Torque-to-weight
188Nm/t126lb-ft/ton
Calculated
381Nm/t255lb-ft/ton
Calculated
Estimated range
1,029km640mi
Calculated
1,351km839mi
Calculated
Displacement
3,498cc213cu in
2,993cc183cu in
Length
4,810mm189in
5,130mm202in
Width
1,820mm72in
1,899mm75in
Height
1,445mm57in
1,460mm57in
Wheelbase
2,850mm112in
3,032mm119in
Front track-
1,626mm64in
Rear track-
1,604mm63in
Trunk volume
400L
-
Doors
4
4
Seats
5
5
Fuel tank
70L
77L
CO2 emissions
159g/km
149g/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.

Infiniti Q50 Facelift 2017 3.5Jaguar XJ (X351) Facelift 2015 3.0d V6PowerTorque
  • Infiniti Q50 Facelift 2017 3.5: Power / Torque
  • Jaguar XJ (X351) Facelift 2015 3.0d V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
InfinitiQ50Facelift 20173.56,800 rpm5,000 rpm7,050 rpm
JaguarXJ (X351)Facelift 20153.0d V64,000 rpm2,000 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricInfinitiQ50Facelift 20173.5JaguarXJ (X351)Facelift 20153.0d V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.2 s
5.9 s
0-100 km/h
0-62 mph
5.4 s
6.2 s
0-200 km/h
0-124 mph
16.5 s
20.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.4 s
2.5 s
330 ft
101 m
6.0 s
6.4 s
1/8 mile
201 m
8.9 s
9.4 s
1000 ft
305 m
11.3 s
12.0 s
1/4 mile
402 m
13.4 s
14.2 s
Trap speed
1/4 mile
402 m
181 km/h
112 mph
170 km/h
105 mph

Power comparison

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

Chart data table
VehicleValue
InfinitiQ50Facelift 20173.5
306 hp
228 kW
JaguarXJ (X351)Facelift 20153.0d V6
300 hp
224 kW

Infiniti Q50 Facelift 2017 3.5 has 6 hp more than Jaguar XJ (X351) Facelift 2015 3.0d V6.

The biggest power difference is between Jaguar XJ (X351) Facelift 2015 3.0d V6 and Infiniti Q50 Facelift 2017 3.5: 6 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
InfinitiQ50Facelift 20173.5
350 Nm
258 lb-ft
JaguarXJ (X351)Facelift 20153.0d V6
700 Nm
516 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
InfinitiQ50Facelift 20173.5
1,861 kg
4,103 lb
JaguarXJ (X351)Facelift 20153.0d V6
1,835 kg
4,045 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
InfinitiQ50Facelift 20173.5
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
JaguarXJ (X351)Facelift 20153.0d V6
Unrestricted
260 km/h162 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
InfinitiQ50Facelift 20173.55.4 s
JaguarXJ (X351)Facelift 20153.0d V66.2 s

The biggest 0-100 km/h difference is between Infiniti Q50 Facelift 2017 3.5 and Jaguar XJ (X351) Facelift 2015 3.0d V6: 0.8 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
InfinitiQ50Facelift 20173.5
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
JaguarXJ (X351)Facelift 20153.0d V6
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

The biggest fuel consumption difference is between Jaguar XJ (X351) Facelift 2015 3.0d V6 and Infiniti Q50 Facelift 2017 3.5: 1.1 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
InfinitiQ50Facelift 20173.5
164 hp/t
123 kW/t
6.1 kg/hp
JaguarXJ (X351)Facelift 20153.0d V6
163 hp/t
122 kW/t
6.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
InfinitiQ50Facelift 20173.5
1,029 km
640 mi
JaguarXJ (X351)Facelift 20153.0d V6
1,351 km
839 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
InfinitiQ50Facelift 20173.5
306 hp
228 kW
5.4 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
JaguarXJ (X351)Facelift 20153.0d V6
300 hp
224 kW
6.2 s
Unrestricted
260 km/h162 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
InfinitiQ50Facelift 20173.5
Power
306 hp
228 kW
0-100 km/h5.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
400 L
14.1 cu ft
Length
4,810 mm
189.4 in
Height
1,445 mm
56.9 in
JaguarXJ (X351)Facelift 20153.0d V6
Power
300 hp
224 kW
0-100 km/h6.2 s
Top speed
Unrestricted
260 km/h162 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

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
InfinitiQ50Facelift 20173.5
Power
306 hp
228 kW
0-100 km/h5.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
JaguarXJ (X351)Facelift 20153.0d V6
Power
300 hp
224 kW
0-100 km/h6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

Jaguar XJ (X351) Facelift 2015 3.0d 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
InfinitiQ50Facelift 20173.5
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
5.4 s
JaguarXJ (X351)Facelift 20153.0d V6
5.7 L/100 km
41.3 mpg US
49.6 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
InfinitiQ50Facelift 20173.5
164 hp/t
123 kW/t
6.1 kg/hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
JaguarXJ (X351)Facelift 20153.0d V6
163 hp/t
122 kW/t
6.1 kg/hp
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleInfinitiQ50Facelift 20173.5JaguarXJ (X351)Facelift 20153.0d V6
Power
306 hp
228 kW
300 hp
224 kW
Torque
350 Nm
258 lb-ft
700 Nm
516 lb-ft
Acceleration
5.4 s
6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,861 kg
4,103 lb
1,835 kg
4,045 lb
Fuel consumption
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
400 L
14.1 cu ft
Length
4,810 mm
189.4 in
Height
1,445 mm
56.9 in
Doors/seats
4 doors
5 seats
Trunk-
Length
5,130 mm
202.0 in
Height
1,460 mm
57.5 in
Range score
1,029 km
640 mi
1,351 km
839 mi
CO2 score
159 g/km
149 g/km
Trunk score
400 L
14.1 cu ft
-
Power-to-weight score
164 hp/t
123 kW/t
6.1 kg/hp
163 hp/t
122 kW/t
6.1 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
VehicleInfiniti Q50 Facelift 2017 3.5Jaguar XJ (X351) Facelift 2015 3.0d V6
Consumption6.8 L/100 km34.6 mpg US41.5 mpg UK5.7 L/100 km41.3 mpg US49.6 mpg UK
Cost / 100 km11.90 LC100 km9.98 LC100 km
Cost / 100 mi19.15 LC100 mi16.05 LC100 mi
Annual fuel used1,020 L269 US gal224 UK gal855 L226 US gal188 UK gal
Annual fuel cost1,785 LC/year1,496 LC/year

Head-to-head comparisons

Infiniti Q50 Facelift 2017 3.5

  • Has 6 hp more
  • Is 0.8 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Has 1 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Highest CO2 emissions

Jaguar XJ (X351) Facelift 2015 3.0d V6

  • Has 350 Nm more
  • Is 26 kg lighter
  • Uses 1.1 L/100 km less fuel
  • Has 321 km (200 mi) more estimated range
  • Emits 10 g/km less CO2

Pros

  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Infiniti Q50 3.5
Jaguar XJ (X351) 3.0d V6
Compare selected cars
2 vehicles selected

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Infiniti Q50 · Facelift 2017 3.5 vs Jaguar XJ (X351) · Facelift 2015 3.0d V6 - car comparison - FastVsFaster