Car comparison

Jaguar XJ (X358) 4.2 V8vsCadillac STS 4.6 i V8

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

New comparison

Jaguar XJ (X358)

4.2 V8

298 hp4196 ccGasolineRWDAutomaticNaturally aspiratedSedan2007-2009
VS

Cadillac STS

4.6 i V8

325 hp4565 ccGasolineAWDAutomaticNaturally aspiratedSedan2006-2011

Comparison overview

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

Best choices

Jaguar XJ (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
    1,603 kg
    3,534 lb
  • Best power-to-weight
    186 hp/t
    139 kW/t
    5.4 kg/hp
  • Lowest combined fuel consumption
    11.4 L/100 km
    20.6 mpg US
    24.8 mpg UK
  • Lowest city consumption
    16.7 L/100 km
    14.1 mpg US
    16.9 mpg UK
  • Lowest highway consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 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 (X358)4.2 V8CadillacSTS4.6 i V8
Power
298hp222kW
325hp242kW
Torque
411Nm303lb-ft
420Nm310lb-ft
Curb weight
1,603kg3,534lb
1,920kg4,233lb
Gross weight
2,223kg4,901lb
-
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
248 km/h
154 mph
To 99% top speed
68.0s99% target: 257 km/h / 160 mph
Calculated
64.9s99% target: 246 km/h / 153 mph
Calculated
0-100 km/h
6.6s
6.7s
0-200 km/h
20.8s
Calculated
22.3s
Calculated
0-60 mph
6.3s
Calculated
6.4s
Calculated
Fuel consumption
11.4L/100 km20.6mpg US24.8mpg UK
14.1L/100 km16.7mpg US20.0mpg UK
Fuel consumption city
16.7L/100 km14.1mpg US16.9mpg UK
19.7L/100 km11.9mpg US14.3mpg UK
Fuel consumption highway
8.4L/100 km28mpg US33.6mpg UK
10.9L/100 km21.6mpg US25.9mpg UK
Quarter mile
14.5s
Calculated
14.6s
Calculated
Power-to-weight
186hp/t139kW/t84hp/1000 lb
Calculated
169hp/t126kW/t77hp/1000 lb
Calculated
Torque-to-weight
256Nm/t172lb-ft/ton
Calculated
219Nm/t146lb-ft/ton
Calculated
Estimated range
746km463mi
Calculated
468km291mi
Calculated
Displacement
4,196cc256cu in
4,565cc279cu in
Length
5,091mm200in
4,985mm196in
Width
1,860mm73in
1,843mm73in
Height
1,462mm58in
1,464mm58in
Wheelbase
3,034mm119in
2,957mm116in
Front track
1,556mm61in
1,596mm63in
Rear track
1,546mm61in
1,581mm62in
Trunk volume
470L
464L
Doors
4
4
Seats
5
5
Fuel tank
85L
66L
CO2 emissions-
336g/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 (X358) 4.2 V8Cadillac STS 4.6 i V8PowerTorque
  • Jaguar XJ (X358) 4.2 V8: Power / Torque
  • Cadillac STS 4.6 i V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
JaguarXJ (X358)4.2 V86,000 rpm4,100 rpm6,250 rpm
CadillacSTS4.6 i V86,400 rpm4,400 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricJaguarXJ (X358)4.2 V8CadillacSTS4.6 i V8
Acceleration checkpoints
0-60 mph
0-97 km/h
6.3 s
6.4 s
0-100 km/h
0-62 mph
6.6 s
6.7 s
0-200 km/h
0-124 mph
20.8 s
22.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
248 km/h
154 mph
Drag race simulation
60 ft
18 m
2.6 s
2.6 s
330 ft
101 m
6.6 s
6.6 s
1/8 mile
201 m
9.7 s
9.8 s
1000 ft
305 m
12.3 s
12.4 s
1/4 mile
402 m
14.5 s
14.6 s
Trap speed
1/4 mile
402 m
168 km/h
104 mph
165 km/h
103 mph

Power comparison

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

Chart data table
VehicleValue
JaguarXJ (X358)4.2 V8
298 hp
222 kW
CadillacSTS4.6 i V8
325 hp
242 kW

Cadillac STS 4.6 i V8 has 27 hp more than Jaguar XJ (X358) 4.2 V8.

The biggest power difference is between Jaguar XJ (X358) 4.2 V8 and Cadillac STS 4.6 i V8: 27 hp (20 kW).

Torque comparison

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

Chart data table
VehicleValue
JaguarXJ (X358)4.2 V8
411 Nm
303 lb-ft
CadillacSTS4.6 i V8
420 Nm
310 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
JaguarXJ (X358)4.2 V8
1,603 kg
3,534 lb
CadillacSTS4.6 i V8
1,920 kg
4,233 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 (X358)4.2 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
CadillacSTS4.6 i V8
248 km/h
154 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
JaguarXJ (X358)4.2 V86.6 s
CadillacSTS4.6 i V86.7 s

Although Cadillac STS 4.6 i V8 has more power, Jaguar XJ (X358) 4.2 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Jaguar XJ (X358) 4.2 V8 and Cadillac STS 4.6 i V8: 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
JaguarXJ (X358)4.2 V8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
CadillacSTS4.6 i V8
14.1 L/100 km
16.7 mpg US
20.0 mpg UK

The biggest fuel consumption difference is between Jaguar XJ (X358) 4.2 V8 and Cadillac STS 4.6 i V8: 2.7 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 (X358)4.2 V8
186 hp/t
139 kW/t
5.4 kg/hp
CadillacSTS4.6 i V8
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
JaguarXJ (X358)4.2 V8
746 km
463 mi
CadillacSTS4.6 i V8
468 km
291 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
JaguarXJ (X358)4.2 V8
298 hp
222 kW
6.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
CadillacSTS4.6 i V8
325 hp
242 kW
6.7 s
248 km/h
154 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 (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
5,091 mm
200.4 in
Height
1,462 mm
57.6 in
CadillacSTS4.6 i V8
Power
325 hp
242 kW
0-100 km/h6.7 s
Top speed
248 km/h
154 mph
Doors/seats
4 doors
5 seats
Trunk
464 L
16.4 cu ft
Length
4,985 mm
196.3 in
Height
1,464 mm
57.6 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 (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
CadillacSTS4.6 i V8
Power
325 hp
242 kW
0-100 km/h6.7 s
Top speed
248 km/h
154 mph
14.1 L/100 km
16.7 mpg US
20.0 mpg UK

Jaguar XJ (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 (X358)4.2 V8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
6.6 s
CadillacSTS4.6 i V8
14.1 L/100 km
16.7 mpg US
20.0 mpg UK
6.7 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 (X358)4.2 V8
186 hp/t
139 kW/t
5.4 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
CadillacSTS4.6 i V8
169 hp/t
126 kW/t
5.9 kg/hp
14.1 L/100 km
16.7 mpg US
20.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleJaguarXJ (X358)4.2 V8CadillacSTS4.6 i V8
Power
298 hp
222 kW
325 hp
242 kW
Torque
411 Nm
303 lb-ft
420 Nm
310 lb-ft
Acceleration
6.6 s
6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
248 km/h
154 mph
Lightness
1,603 kg
3,534 lb
1,920 kg
4,233 lb
Fuel consumption
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
14.1 L/100 km
16.7 mpg US
20.0 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
5,091 mm
200.4 in
Height
1,462 mm
57.6 in
Doors/seats
4 doors
5 seats
Trunk
464 L
16.4 cu ft
Length
4,985 mm
196.3 in
Height
1,464 mm
57.6 in
Range score
746 km
463 mi
468 km
291 mi
CO2 score
-
336 g/km
Trunk score
470 L
16.6 cu ft
464 L
16.4 cu ft
Power-to-weight score
186 hp/t
139 kW/t
5.4 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 XJ (X358) 4.2 V8Cadillac STS 4.6 i V8
Consumption11.4 L/100 km20.6 mpg US24.8 mpg UK14.1 L/100 km16.7 mpg US20 mpg UK
Cost / 100 km19.95 LC100 km24.68 LC100 km
Cost / 100 mi32.11 LC100 mi39.71 LC100 mi
Annual fuel used1,710 L452 US gal376 UK gal2,115 L559 US gal465 UK gal
Annual fuel cost2,993 LC/year3,701 LC/year

Head-to-head comparisons

Jaguar XJ (X358) 4.2 V8

  • Is 317 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 12 km/h (7 mph) higher top speed
  • Uses 2.7 L/100 km less fuel
  • Has 17 hp/t better power-to-weight
  • Has 278 km (172 mi) more estimated range
  • Has 6 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

Cadillac STS 4.6 i V8

  • Has 27 hp more
  • Has 9 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 (X358) 4.2 V8
Cadillac STS 4.6 i V8
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