Car comparison

Jaguar XK Convertible (X150) 4.2 V8vsInfiniti G37 Convertible (V36) 3.7 V6

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

New comparison

Jaguar XK Convertible (X150)

4.2 V8

298 hp4196 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2006-2009
VS

Infiniti G37 Convertible (V36)

3.7 V6

320 hp3696 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2009-2015

Comparison overview

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

Best choices

Jaguar XK Convertible (X150) 4.2 V8

  • Quickest 0-100 km/h
    6.3 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    411 Nm
    303 lb-ft
  • Lightest
    1,660 kg
    3,660 lb
  • Best power-to-weight
    180 hp/t
    134 kW/t
    5.6 kg/hp
  • Lowest combined fuel consumption
    11.3 L/100 km
    20.8 mpg US
    25.0 mpg UK
  • Lowest highway consumption
    8.1 L/100 km
    29.0 mpg US
    34.9 mpg UK
  • Best performance score
    63/100
  • Best economy score
    77/100

Infiniti G37 Convertible (V36) 3.7 V6

  • Most powerful
    320 hp
    239 kW
  • Lowest city consumption
    16.4 L/100 km
    14.3 mpg US
    17.2 mpg UK
  • Best estimated range
    702 km
    436 mi
  • Largest trunk
    366 L
  • Best overall score
    57/100
  • Best practicality score
    47/100

Specification comparison

Specification comparison
ModelJaguarXK Convertible (X150)4.2 V8InfinitiG37 Convertible (V36)3.7 V6
Power
298hp222kW
320hp239kW
Torque
411Nm303lb-ft
360Nm266lb-ft
Curb weight
1,660kg3,660lb
1,898kg4,184lb
Gross weight
2,075kg4,575lb
-
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
89.1s99% target: 257 km/h / 160 mph
Calculated
95.7s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
6.3s
6.4s
0-200 km/h
23.2s
Calculated
24.2s
Calculated
0-60 mph
6.0s
Calculated
6.1s
Calculated
Fuel consumption
11.3L/100 km20.8mpg US25.0mpg UK
11.4L/100 km20.6mpg US24.8mpg UK
Fuel consumption city
17.1L/100 km13.8mpg US16.5mpg UK
16.4L/100 km14.3mpg US17.2mpg UK
Fuel consumption highway
8.1L/100 km29mpg US34.9mpg UK
8.3L/100 km28.3mpg US34.0mpg UK
Quarter mile
14.4s
Calculated
14.5s
Calculated
Power-to-weight
180hp/t134kW/t81hp/1000 lb
Calculated
169hp/t126kW/t76hp/1000 lb
Calculated
Torque-to-weight
248Nm/t166lb-ft/ton
Calculated
190Nm/t127lb-ft/ton
Calculated
Estimated range
629km391mi
Calculated
702km436mi
Calculated
Displacement
4,196cc256cu in
3,696cc226cu in
Length
4,791mm189in
4,660mm183in
Width-
1,852mm73in
Height
1,329mm52in
1,400mm55in
Wheelbase
2,752mm108in
2,850mm112in
Front track-
1,545mm61in
Rear track-
1,595mm63in
Ground clearance
120mm5in
-
Trunk volume
200L
366L
Max trunk volume
283L
-
Doors
2
2
Seats
4
4
Fuel tank
71L
80L

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 XK Convertible (X150) 4.2 V8Infiniti G37 Convertible (V36) 3.7 V6PowerTorque
  • Jaguar XK Convertible (X150) 4.2 V8: Power / Torque
  • Infiniti G37 Convertible (V36) 3.7 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
JaguarXK Convertible (X150)4.2 V86,000 rpm4,100 rpm6,250 rpm
InfinitiG37 Convertible (V36)3.7 V67,000 rpm5,200 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricJaguarXK Convertible (X150)4.2 V8InfinitiG37 Convertible (V36)3.7 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
6.0 s
6.1 s
0-100 km/h
0-62 mph
6.3 s
6.4 s
0-200 km/h
0-124 mph
23.2 s
24.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
330 ft
101 m
6.3 s
6.3 s
1/8 mile
201 m
9.4 s
9.4 s
1000 ft
305 m
12.1 s
12.2 s
1/4 mile
402 m
14.4 s
14.5 s
Trap speed
1/4 mile
402 m
162 km/h
101 mph
160 km/h
99 mph

Power comparison

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

Chart data table
VehicleValue
JaguarXK Convertible (X150)4.2 V8
298 hp
222 kW
InfinitiG37 Convertible (V36)3.7 V6
320 hp
239 kW

Infiniti G37 Convertible (V36) 3.7 V6 has 22 hp more than Jaguar XK Convertible (X150) 4.2 V8.

The biggest power difference is between Jaguar XK Convertible (X150) 4.2 V8 and Infiniti G37 Convertible (V36) 3.7 V6: 22 hp (16 kW).

Torque comparison

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

Chart data table
VehicleValue
JaguarXK Convertible (X150)4.2 V8
411 Nm
303 lb-ft
InfinitiG37 Convertible (V36)3.7 V6
360 Nm
266 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
JaguarXK Convertible (X150)4.2 V8
1,660 kg
3,660 lb
InfinitiG37 Convertible (V36)3.7 V6
1,898 kg
4,184 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
JaguarXK Convertible (X150)4.2 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
InfinitiG37 Convertible (V36)3.7 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
JaguarXK Convertible (X150)4.2 V86.3 s
InfinitiG37 Convertible (V36)3.7 V66.4 s

Although Infiniti G37 Convertible (V36) 3.7 V6 has more power, Jaguar XK Convertible (X150) 4.2 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Jaguar XK Convertible (X150) 4.2 V8 and Infiniti G37 Convertible (V36) 3.7 V6: 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
JaguarXK Convertible (X150)4.2 V8
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
InfinitiG37 Convertible (V36)3.7 V6
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
JaguarXK Convertible (X150)4.2 V8
180 hp/t
134 kW/t
5.6 kg/hp
InfinitiG37 Convertible (V36)3.7 V6
169 hp/t
126 kW/t
5.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
JaguarXK Convertible (X150)4.2 V8
629 km
391 mi
InfinitiG37 Convertible (V36)3.7 V6
702 km
436 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
JaguarXK Convertible (X150)4.2 V8
298 hp
222 kW
6.3 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
InfinitiG37 Convertible (V36)3.7 V6
320 hp
239 kW
6.4 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
JaguarXK Convertible (X150)4.2 V8
Power
298 hp
222 kW
0-100 km/h6.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
200 L
7.1 cu ft
Length
4,791 mm
188.6 in
Height
1,329 mm
52.3 in
InfinitiG37 Convertible (V36)3.7 V6
Power
320 hp
239 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
366 L
12.9 cu ft
Length
4,660 mm
183.5 in
Height
1,400 mm
55.1 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
JaguarXK Convertible (X150)4.2 V8
Power
298 hp
222 kW
0-100 km/h6.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
InfinitiG37 Convertible (V36)3.7 V6
Power
320 hp
239 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Jaguar XK Convertible (X150) 4.2 V8 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
JaguarXK Convertible (X150)4.2 V8
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
6.3 s
InfinitiG37 Convertible (V36)3.7 V6
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
6.4 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
JaguarXK Convertible (X150)4.2 V8
180 hp/t
134 kW/t
5.6 kg/hp
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
InfinitiG37 Convertible (V36)3.7 V6
169 hp/t
126 kW/t
5.9 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleJaguarXK Convertible (X150)4.2 V8InfinitiG37 Convertible (V36)3.7 V6
Power
298 hp
222 kW
320 hp
239 kW
Torque
411 Nm
303 lb-ft
360 Nm
266 lb-ft
Acceleration
6.3 s
6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,660 kg
3,660 lb
1,898 kg
4,184 lb
Fuel consumption
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
200 L
7.1 cu ft
Length
4,791 mm
188.6 in
Height
1,329 mm
52.3 in
Doors/seats
2 doors
4 seats
Trunk
366 L
12.9 cu ft
Length
4,660 mm
183.5 in
Height
1,400 mm
55.1 in
Range score
629 km
391 mi
702 km
436 mi
Trunk score
200 L
7.1 cu ft
366 L
12.9 cu ft
Power-to-weight score
180 hp/t
134 kW/t
5.6 kg/hp
169 hp/t
126 kW/t
5.9 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
VehicleJaguar XK Convertible (X150) 4.2 V8Infiniti G37 Convertible (V36) 3.7 V6
Consumption11.3 L/100 km20.8 mpg US25 mpg UK11.4 L/100 km20.6 mpg US24.8 mpg UK
Cost / 100 km19.78 LC100 km19.95 LC100 km
Cost / 100 mi31.82 LC100 mi32.11 LC100 mi
Annual fuel used1,695 L448 US gal373 UK gal1,710 L452 US gal376 UK gal
Annual fuel cost2,966 LC/year2,993 LC/year

Head-to-head comparisons

Jaguar XK Convertible (X150) 4.2 V8

  • Has 51 Nm more
  • Is 238 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.1 L/100 km less fuel
  • Has 11 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Smallest trunk

Infiniti G37 Convertible (V36) 3.7 V6

  • Has 22 hp more
  • Has 73 km (45 mi) more estimated range
  • Has 166 L more trunk volume

Pros

  • Most powerful
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
Jaguar XK Convertible (X150) 4.2 V8
Infiniti G37 Convertible (V36) 3.7 V6
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