Jaguar XJ (X351) · Facelift 2015
Car comparison
Jaguar XJ (X351) · Facelift 2015 5.0 V8vsJaguar XJ (X358) 4.2 V8
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonJaguar XJ (X358)
4.2 V8
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Jaguar XJ (X351) Facelift 2015 5.0 V8
- Quickest 0-100 km/h4.9 s
- Fastest top speed265 km/h165 mph Unrestricted250 km/h155 mph Restricted
- Most powerful510 hp380 kW
- Highest torque625 Nm461 lb-ft
- Best power-to-weight272 hp/t203 kW/t3.7 kg/hp
- Lowest combined fuel consumption11.1 L/100 km21.2 mpg US25.4 mpg UK
- Best overall score80/100
- Best performance score81/100
- Best economy score77/100
- Best practicality score78/100
Jaguar XJ (X358) 4.2 V8
- Lightest1,603 kg3,534 lb
- Best estimated range746 km463 mi
Specification comparison
| Model | JaguarXJ (X351)Facelift 20155.0 V8 | JaguarXJ (X358)4.2 V8 |
|---|---|---|
| Power | 510hp380kW | 298hp222kW |
| Torque | 625Nm461lb-ft | 411Nm303lb-ft |
| Curb weight | 1,875kg4,134lb | 1,603kg3,534lb |
| Gross weight | - | 2,223kg4,901lb |
| 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 | 46.9s99% target: 262 km/h / 163 mph Calculated | 68.0s99% target: 257 km/h / 160 mph Calculated |
| 0-100 km/h | 4.9s | 6.6s |
| 0-200 km/h | 14.4s Calculated | 20.8s Calculated |
| 0-60 mph | 4.7s Calculated | 6.3s Calculated |
| Fuel consumption | 11.1L/100 km21.2mpg US25.4mpg UK | 11.4L/100 km20.6mpg US24.8mpg UK |
| Fuel consumption city | - | 16.7L/100 km14.1mpg US16.9mpg UK |
| Fuel consumption highway | - | 8.4L/100 km28mpg US33.6mpg UK |
| Quarter mile | 12.8s Calculated | 14.5s Calculated |
| Power-to-weight | 272hp/t203kW/t123hp/1000 lb Calculated | 186hp/t139kW/t84hp/1000 lb Calculated |
| Torque-to-weight | 333Nm/t223lb-ft/ton Calculated | 256Nm/t172lb-ft/ton Calculated |
| Estimated range | 721km448mi Calculated | 746km463mi Calculated |
| Displacement | 5,000cc305cu in | 4,196cc256cu in |
| Length | 5,130mm202in | 5,091mm200in |
| Width | 1,899mm75in | 1,860mm73in |
| Height | 1,460mm57in | 1,462mm58in |
| Wheelbase | 3,032mm119in | 3,034mm119in |
| Front track | 1,626mm64in | 1,556mm61in |
| Rear track | 1,604mm63in | 1,546mm61in |
| Trunk volume | - | 470L |
| Doors | 4 | 4 |
| Seats | 5 | 5 |
| Fuel tank | 80L | 85L |
| CO2 emissions | 264g/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 5.0 V8: Power / Torque
- Jaguar XJ (X358) 4.2 V8: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 6,000-6,500 rpm | 2,500-5,500 rpm | 6,750 rpm |
| JaguarXJ (X358)4.2 V8 | 6,000 rpm | 4,100 rpm | 6,250 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | JaguarXJ (X351)Facelift 20155.0 V8 | JaguarXJ (X358)4.2 V8 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 4.7 s | 6.3 s |
0-100 km/h 0-62 mph | 4.9 s | 6.6 s |
0-200 km/h 0-124 mph | 14.4 s | 20.8 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 Limited |
| Drag race simulation | ||
60 ft 18 m | 2.4 s | 2.6 s |
330 ft 101 m | 5.8 s | 6.6 s |
1/8 mile 201 m | 8.5 s | 9.7 s |
1000 ft 305 m | 10.9 s | 12.3 s |
1/4 mile 402 m | 12.8 s | 14.5 s |
Trap speed 1/4 mile 402 m | 189 km/h 117 mph | 168 km/h 104 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 510 hp 380 kW |
| JaguarXJ (X358)4.2 V8 | 298 hp 222 kW |
Jaguar XJ (X351) Facelift 2015 5.0 V8 has 212 hp more than Jaguar XJ (X358) 4.2 V8.
The biggest power difference is between Jaguar XJ (X358) 4.2 V8 and Jaguar XJ (X351) Facelift 2015 5.0 V8: 212 hp (158 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 625 Nm 461 lb-ft |
| JaguarXJ (X358)4.2 V8 | 411 Nm 303 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 1,875 kg 4,134 lb |
| JaguarXJ (X358)4.2 V8 | 1,603 kg 3,534 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| JaguarXJ (X358)4.2 V8 | 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
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 4.9 s |
| JaguarXJ (X358)4.2 V8 | 6.6 s |
The biggest 0-100 km/h difference is between Jaguar XJ (X351) Facelift 2015 5.0 V8 and Jaguar XJ (X358) 4.2 V8: 1.7 s.
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 11.1 L/100 km 21.2 mpg US 25.4 mpg UK |
| JaguarXJ (X358)4.2 V8 | 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
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 272 hp/t 203 kW/t 3.7 kg/hp |
| JaguarXJ (X358)4.2 V8 | 186 hp/t 139 kW/t 5.4 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 721 km 448 mi |
| JaguarXJ (X358)4.2 V8 | 746 km 463 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 510 hp 380 kW | 4.9 s | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| JaguarXJ (X358)4.2 V8 | 298 hp 222 kW | 6.6 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.
| Vehicle | Performance score | Practicality score | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 |
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| JaguarXJ (X358)4.2 V8 |
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Performance vs fuel economy
Cars closer to the top-right corner combine stronger performance with better fuel economy scores.
| Vehicle | Performance score | Fuel economy score | ||||||
|---|---|---|---|---|---|---|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 |
| 11.1 L/100 km 21.2 mpg US 25.4 mpg UK | ||||||
| JaguarXJ (X358)4.2 V8 |
| 11.4 L/100 km 20.6 mpg US 24.8 mpg UK | ||||||
Jaguar XJ (X351) Facelift 2015 5.0 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.
| Vehicle | Fuel consumption, L/100 km | 0-100 km/h, s |
|---|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 11.1 L/100 km 21.2 mpg US 25.4 mpg UK | 4.9 s |
| JaguarXJ (X358)4.2 V8 | 11.4 L/100 km 20.6 mpg US 24.8 mpg UK | 6.6 s |
Power-to-weight vs fuel consumption
The shaded area favors higher power-to-weight with lower combined fuel consumption.
| Vehicle | Power-to-weight, hp/t | Fuel consumption, L/100 km |
|---|---|---|
| JaguarXJ (X351)Facelift 20155.0 V8 | 272 hp/t 203 kW/t 3.7 kg/hp | 11.1 L/100 km 21.2 mpg US 25.4 mpg UK |
| 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 |
Detailed score breakdown
| Vehicle | JaguarXJ (X351)Facelift 20155.0 V8 | JaguarXJ (X358)4.2 V8 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 510 hp 380 kW | 298 hp 222 kW | ||||||||||||||||
| Torque | 625 Nm 461 lb-ft | 411 Nm 303 lb-ft | ||||||||||||||||
| Acceleration | 4.9 s | 6.6 s | ||||||||||||||||
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph | ||||||||||||||||
| Lightness | 1,875 kg 4,134 lb | 1,603 kg 3,534 lb | ||||||||||||||||
| Fuel consumption | 11.1 L/100 km 21.2 mpg US 25.4 mpg UK | 11.4 L/100 km 20.6 mpg US 24.8 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 721 km 448 mi | 746 km 463 mi | ||||||||||||||||
| CO2 score | 264 g/km | - | ||||||||||||||||
| Trunk score | - | 470 L 16.6 cu ft | ||||||||||||||||
| Power-to-weight score | 272 hp/t 203 kW/t 3.7 kg/hp | 186 hp/t 139 kW/t 5.4 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
| Vehicle | Jaguar XJ (X351) Facelift 2015 5.0 V8 | Jaguar XJ (X358) 4.2 V8 |
|---|---|---|
| Consumption | 11.1 L/100 km21.2 mpg US25.4 mpg UK | 11.4 L/100 km20.6 mpg US24.8 mpg UK |
| Cost / 100 km | 19.43 LC100 km | 19.95 LC100 km |
| Cost / 100 mi | 31.26 LC100 mi | 32.11 LC100 mi |
| Annual fuel used | 1,665 L440 US gal366 UK gal | 1,710 L452 US gal376 UK gal |
| Annual fuel cost | 2,914 LC/year | 2,993 LC/year |
Head-to-head comparisons
Jaguar XJ (X351) Facelift 2015 5.0 V8
- Has 212 hp more
- Has 214 Nm more
- Is 1.7 s quicker from 0-100 km/h
- Has 5 km/h (3 mph) higher top speed
- Uses 0.3 L/100 km less fuel
- Has 86 hp/t better power-to-weight
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
Cons
- Heaviest
Jaguar XJ (X358) 4.2 V8
- Is 272 kg lighter
- Has 25 km (15 mi) more estimated range
Pros
- Lightest
- Best estimated range
Cons
- Slowest 0-100 km/h
- Lowest power
- Highest combined fuel consumption
- Lowest top speed
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