Car comparison

Jaguar XJ Sovereign (X358) 4.2 V8vsJaguar XJ (X300) 6.0 V12 Classic

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

New comparison

Jaguar XJ Sovereign (X358)

4.2 V8

298 hp4196 ccGasolineRWDAutomaticNaturally aspiratedSedan2007-2009
VS

Jaguar XJ (X300)

6.0 V12 Classic

311 hp5993 ccGasolineRWDAutomaticNaturally aspiratedSedan1994-1997

Comparison overview

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

Best choices

Jaguar XJ Sovereign (X358) 4.2 V8

  • Quickest 0-100 km/h
    6.6 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,609 kg
    3,547 lb
  • Best power-to-weight
    185 hp/t
    138 kW/t
    5.4 kg/hp
  • Lowest combined fuel consumption
    11.4 L/100 km
    20.6 mpg US
    24.8 mpg UK
  • Best estimated range
    746 km
    463 mi
  • Largest trunk
    470 L
  • Best overall score
    66/100
  • Best performance score
    62/100
  • Best economy score
    76/100
  • Best practicality score
    75/100

Specification comparison

Specification comparison
ModelJaguarXJ Sovereign (X358)4.2 V8JaguarXJ (X300)6.0 V12 Classic
Power
298hp222kW
311hp232kW
Torque
411Nm303lb-ft
475Nm350lb-ft
Curb weight
1,609kg3,547lb
1,975kg4,354lb
Gross weight
2,246kg4,952lb
2,395kg5,280lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
254 km/h
158 mph
To 99% top speed
68.1s99% target: 257 km/h / 160 mph
Calculated
73.2s99% target: 251 km/h / 156 mph
Calculated
0-100 km/h
6.6s
7.2s
0-200 km/h
20.8s
Calculated
23.4s
Calculated
0-60 mph
6.3s
Calculated
6.9s
Calculated
Fuel consumption
11.4L/100 km20.6mpg US24.8mpg UK
15.7L/100 km15mpg US18.0mpg UK
Fuel consumption city
16.7L/100 km14.1mpg US16.9mpg UK
-
Fuel consumption highway
8.4L/100 km28mpg US33.6mpg UK
-
Quarter mile
14.5s
Calculated
15.1s
Calculated
Power-to-weight
185hp/t138kW/t84hp/1000 lb
Calculated
157hp/t117kW/t71hp/1000 lb
Calculated
Torque-to-weight
255Nm/t171lb-ft/ton
Calculated
241Nm/t161lb-ft/ton
Calculated
Estimated range
746km463mi
Calculated
548km340mi
Calculated
Displacement
4,196cc256cu in
5,993cc366cu in
Length
5,216mm205in
5,023mm198in
Width
1,860mm73in
1,798mm71in
Height
1,463mm58in
1,314mm52in
Wheelbase
3,159mm124in
2,870mm113in
Front track
1,556mm61in
1,500mm59in
Rear track
1,546mm61in
1,498mm59in
Trunk volume
470L
430L
Doors
4
4
Seats
5
5
Fuel tank
85L
86L

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 Sovereign (X358) 4.2 V8Jaguar XJ (X300) 6.0 V12 ClassicPowerTorque
  • Jaguar XJ Sovereign (X358) 4.2 V8: Power / Torque
  • Jaguar XJ (X300) 6.0 V12 Classic: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
JaguarXJ Sovereign (X358)4.2 V86,000 rpm4,100 rpm6,250 rpm
JaguarXJ (X300)6.0 V12 Classic5,350 rpm2,850 rpm5,600 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricJaguarXJ Sovereign (X358)4.2 V8JaguarXJ (X300)6.0 V12 Classic
Acceleration checkpoints
0-60 mph
0-97 km/h
6.3 s
6.9 s
0-100 km/h
0-62 mph
6.6 s
7.2 s
0-200 km/h
0-124 mph
20.8 s
23.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
254 km/h
158 mph
Drag race simulation
60 ft
18 m
2.6 s
2.7 s
330 ft
101 m
6.6 s
6.8 s
1/8 mile
201 m
9.7 s
10.1 s
1000 ft
305 m
12.3 s
12.8 s
1/4 mile
402 m
14.5 s
15.1 s
Trap speed
1/4 mile
402 m
168 km/h
104 mph
162 km/h
101 mph

Power comparison

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

Chart data table
VehicleValue
JaguarXJ Sovereign (X358)4.2 V8
298 hp
222 kW
JaguarXJ (X300)6.0 V12 Classic
311 hp
232 kW

Jaguar XJ (X300) 6.0 V12 Classic has 13 hp more than Jaguar XJ Sovereign (X358) 4.2 V8.

The biggest power difference is between Jaguar XJ Sovereign (X358) 4.2 V8 and Jaguar XJ (X300) 6.0 V12 Classic: 13 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
JaguarXJ Sovereign (X358)4.2 V8
411 Nm
303 lb-ft
JaguarXJ (X300)6.0 V12 Classic
475 Nm
350 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
JaguarXJ Sovereign (X358)4.2 V8
1,609 kg
3,547 lb
JaguarXJ (X300)6.0 V12 Classic
1,975 kg
4,354 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 Sovereign (X358)4.2 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
JaguarXJ (X300)6.0 V12 Classic
254 km/h
158 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
JaguarXJ Sovereign (X358)4.2 V86.6 s
JaguarXJ (X300)6.0 V12 Classic7.2 s

Although Jaguar XJ (X300) 6.0 V12 Classic has more power, Jaguar XJ Sovereign (X358) 4.2 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Jaguar XJ Sovereign (X358) 4.2 V8 and Jaguar XJ (X300) 6.0 V12 Classic: 0.6 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 Sovereign (X358)4.2 V8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
JaguarXJ (X300)6.0 V12 Classic
15.7 L/100 km
15.0 mpg US
18.0 mpg UK

The biggest fuel consumption difference is between Jaguar XJ Sovereign (X358) 4.2 V8 and Jaguar XJ (X300) 6.0 V12 Classic: 4.3 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
JaguarXJ Sovereign (X358)4.2 V8
185 hp/t
138 kW/t
5.4 kg/hp
JaguarXJ (X300)6.0 V12 Classic
157 hp/t
117 kW/t
6.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
JaguarXJ Sovereign (X358)4.2 V8
746 km
463 mi
JaguarXJ (X300)6.0 V12 Classic
548 km
340 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
JaguarXJ Sovereign (X358)4.2 V8
298 hp
222 kW
6.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
JaguarXJ (X300)6.0 V12 Classic
311 hp
232 kW
7.2 s
254 km/h
158 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 Sovereign (X358)4.2 V8
Power
298 hp
222 kW
0-100 km/h6.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
5,216 mm
205.4 in
Height
1,463 mm
57.6 in
JaguarXJ (X300)6.0 V12 Classic
Power
311 hp
232 kW
0-100 km/h7.2 s
Top speed
254 km/h
158 mph
Doors/seats
4 doors
5 seats
Trunk
430 L
15.2 cu ft
Length
5,023 mm
197.8 in
Height
1,314 mm
51.7 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
JaguarXJ Sovereign (X358)4.2 V8
Power
298 hp
222 kW
0-100 km/h6.6 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
JaguarXJ (X300)6.0 V12 Classic
Power
311 hp
232 kW
0-100 km/h7.2 s
Top speed
254 km/h
158 mph
15.7 L/100 km
15.0 mpg US
18.0 mpg UK

Jaguar XJ Sovereign (X358) 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
JaguarXJ Sovereign (X358)4.2 V8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
6.6 s
JaguarXJ (X300)6.0 V12 Classic
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
7.2 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 Sovereign (X358)4.2 V8
185 hp/t
138 kW/t
5.4 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
JaguarXJ (X300)6.0 V12 Classic
157 hp/t
117 kW/t
6.4 kg/hp
15.7 L/100 km
15.0 mpg US
18.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleJaguarXJ Sovereign (X358)4.2 V8JaguarXJ (X300)6.0 V12 Classic
Power
298 hp
222 kW
311 hp
232 kW
Torque
411 Nm
303 lb-ft
475 Nm
350 lb-ft
Acceleration
6.6 s
7.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
254 km/h
158 mph
Lightness
1,609 kg
3,547 lb
1,975 kg
4,354 lb
Fuel consumption
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
5,216 mm
205.4 in
Height
1,463 mm
57.6 in
Doors/seats
4 doors
5 seats
Trunk
430 L
15.2 cu ft
Length
5,023 mm
197.8 in
Height
1,314 mm
51.7 in
Range score
746 km
463 mi
548 km
340 mi
Trunk score
470 L
16.6 cu ft
430 L
15.2 cu ft
Power-to-weight score
185 hp/t
138 kW/t
5.4 kg/hp
157 hp/t
117 kW/t
6.4 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 Sovereign (X358) 4.2 V8Jaguar XJ (X300) 6.0 V12 Classic
Consumption11.4 L/100 km20.6 mpg US24.8 mpg UK15.7 L/100 km15 mpg US18 mpg UK
Cost / 100 km19.95 LC100 km27.47 LC100 km
Cost / 100 mi32.11 LC100 mi44.22 LC100 mi
Annual fuel used1,710 L452 US gal376 UK gal2,355 L622 US gal518 UK gal
Annual fuel cost2,993 LC/year4,121 LC/year

Head-to-head comparisons

Jaguar XJ Sovereign (X358) 4.2 V8

  • Is 366 kg lighter
  • Is 0.6 s quicker from 0-100 km/h
  • Has 6 km/h (4 mph) higher top speed
  • Uses 4.3 L/100 km less fuel
  • Has 28 hp/t better power-to-weight
  • Has 198 km (123 mi) more estimated range
  • Has 40 L more trunk volume

Pros

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

Cons

  • Lowest power

Jaguar XJ (X300) 6.0 V12 Classic

  • Has 13 hp more
  • Has 64 Nm more

Pros

  • Most powerful
  • Highest torque

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Jaguar XJ Sovereign (X358) 4.2 V8
Jaguar XJ (X300) 6.0 V12 Classic
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