Jaguar XJ (X351)
Car comparison
Jaguar XJ (X351) 5.0 V8vsJaguar XJ (X300) R 4.0 24V Sport
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonJaguar XJ (X300)
R 4.0 24V Sport
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Jaguar XJ (X351) 5.0 V8
- Quickest 0-100 km/h5.7 s
- Fastest top speed265 km/h165 mph Unrestricted250 km/h155 mph Restricted
- Most powerful385 hp287 kW
- Highest torque515 Nm380 lb-ft
- Lightest1,755 kg3,869 lb
- Best power-to-weight219 hp/t164 kW/t4.6 kg/hp
- Lowest combined fuel consumption11.3 L/100 km20.8 mpg US25.0 mpg UK
- Best estimated range726 km451 mi
- Largest trunk520 L
- Best overall score73/100
- Best performance score71/100
- Best economy score77/100
- Best practicality score77/100
Specification comparison
| Model | JaguarXJ (X351)5.0 V8 | JaguarXJ (X300)R 4.0 24V Sport |
|---|---|---|
| Power | 385hp287kW | 320hp239kW |
| Torque | 515Nm380lb-ft | 512Nm378lb-ft |
| Curb weight | 1,755kg3,869lb | 1,875kg4,134lb |
| Gross weight | 2,300kg5,071lb | 2,295kg5,060lb |
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated |
| To 99% top speed | 58.2s99% target: 262 km/h / 163 mph Calculated | 65.8s99% target: 262 km/h / 163 mph Calculated |
| 0-100 km/h | 5.7s | 6.3s |
| 0-200 km/h | 17.3s Calculated | 19.3s Calculated |
| 0-60 mph | 5.5s Calculated | 6.0s Calculated |
| Fuel consumption | 11.3L/100 km20.8mpg US25.0mpg UK | 12.5L/100 km18.8mpg US22.6mpg UK |
| Fuel consumption city | 17L/100 km13.8mpg US16.6mpg UK | - |
| Fuel consumption highway | 8.2L/100 km28.7mpg US34.4mpg UK | - |
| Quarter mile | 13.6s Calculated | 14.2s Calculated |
| Power-to-weight | 219hp/t164kW/t100hp/1000 lb Calculated | 171hp/t127kW/t77hp/1000 lb Calculated |
| Torque-to-weight | 293Nm/t196lb-ft/ton Calculated | 273Nm/t183lb-ft/ton Calculated |
| Estimated range | 726km451mi Calculated | 688km428mi Calculated |
| Displacement | 5,000cc305cu in | 3,980cc243cu in |
| Length | 5,127mm202in | 5,023mm198in |
| Width | 1,894mm75in | 1,798mm71in |
| Height | 1,457mm57in | 1,303mm51in |
| Wheelbase | 3,032mm119in | 2,870mm113in |
| Front track | 1,626mm64in | 1,500mm59in |
| Rear track | 1,604mm63in | 1,498mm59in |
| Trunk volume | 520L | 430L |
| Doors | 4 | 4 |
| Seats | 5 | 5 |
| Fuel tank | 82L | 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 (X351) 5.0 V8: Power / Torque
- Jaguar XJ (X300) R 4.0 24V Sport: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| JaguarXJ (X351)5.0 V8 | 6,500 rpm | 6,500 rpm | 6,750 rpm |
| JaguarXJ (X300)R 4.0 24V Sport | 5,000 rpm | 3,050 rpm | 5,250 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | JaguarXJ (X351)5.0 V8 | JaguarXJ (X300)R 4.0 24V Sport |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 5.5 s | 6.0 s |
0-100 km/h 0-62 mph | 5.7 s | 6.3 s |
0-200 km/h 0-124 mph | 17.3 s | 19.3 s |
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Limited | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited |
| Drag race simulation | ||
60 ft 18 m | 2.5 s | 2.6 s |
330 ft 101 m | 6.2 s | 6.5 s |
1/8 mile 201 m | 9.1 s | 9.5 s |
1000 ft 305 m | 11.6 s | 12.1 s |
1/4 mile 402 m | 13.6 s | 14.2 s |
Trap speed 1/4 mile 402 m | 178 km/h 111 mph | 172 km/h 107 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)5.0 V8 | 385 hp 287 kW |
| JaguarXJ (X300)R 4.0 24V Sport | 320 hp 239 kW |
Jaguar XJ (X351) 5.0 V8 has 65 hp more than Jaguar XJ (X300) R 4.0 24V Sport.
The biggest power difference is between Jaguar XJ (X300) R 4.0 24V Sport and Jaguar XJ (X351) 5.0 V8: 65 hp (48 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)5.0 V8 | 515 Nm 380 lb-ft |
| JaguarXJ (X300)R 4.0 24V Sport | 512 Nm 378 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)5.0 V8 | 1,755 kg 3,869 lb |
| JaguarXJ (X300)R 4.0 24V Sport | 1,875 kg 4,134 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)5.0 V8 | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| JaguarXJ (X300)R 4.0 24V Sport | Unrestricted 265 km/h165 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)5.0 V8 | 5.7 s |
| JaguarXJ (X300)R 4.0 24V Sport | 6.3 s |
The biggest 0-100 km/h difference is between Jaguar XJ (X351) 5.0 V8 and Jaguar XJ (X300) R 4.0 24V Sport: 0.6 s.
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)5.0 V8 | 11.3 L/100 km 20.8 mpg US 25.0 mpg UK |
| JaguarXJ (X300)R 4.0 24V Sport | 12.5 L/100 km 18.8 mpg US 22.6 mpg UK |
The biggest fuel consumption difference is between Jaguar XJ (X351) 5.0 V8 and Jaguar XJ (X300) R 4.0 24V Sport: 1.2 L/100 km.
Power-to-weight comparison
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)5.0 V8 | 219 hp/t 164 kW/t 4.6 kg/hp |
| JaguarXJ (X300)R 4.0 24V Sport | 171 hp/t 127 kW/t 5.9 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| JaguarXJ (X351)5.0 V8 | 726 km 451 mi |
| JaguarXJ (X300)R 4.0 24V Sport | 688 km 428 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| JaguarXJ (X351)5.0 V8 | 385 hp 287 kW | 5.7 s | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| JaguarXJ (X300)R 4.0 24V Sport | 320 hp 239 kW | 6.3 s | Unrestricted 265 km/h165 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)5.0 V8 |
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| JaguarXJ (X300)R 4.0 24V Sport |
|
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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)5.0 V8 |
| 11.3 L/100 km 20.8 mpg US 25.0 mpg UK | ||||||
| JaguarXJ (X300)R 4.0 24V Sport |
| 12.5 L/100 km 18.8 mpg US 22.6 mpg UK | ||||||
Jaguar XJ (X351) 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)5.0 V8 | 11.3 L/100 km 20.8 mpg US 25.0 mpg UK | 5.7 s |
| JaguarXJ (X300)R 4.0 24V Sport | 12.5 L/100 km 18.8 mpg US 22.6 mpg UK | 6.3 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)5.0 V8 | 219 hp/t 164 kW/t 4.6 kg/hp | 11.3 L/100 km 20.8 mpg US 25.0 mpg UK |
| JaguarXJ (X300)R 4.0 24V Sport | 171 hp/t 127 kW/t 5.9 kg/hp | 12.5 L/100 km 18.8 mpg US 22.6 mpg UK |
Detailed score breakdown
| Vehicle | JaguarXJ (X351)5.0 V8 | JaguarXJ (X300)R 4.0 24V Sport | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 385 hp 287 kW | 320 hp 239 kW | ||||||||||||||||
| Torque | 515 Nm 380 lb-ft | 512 Nm 378 lb-ft | ||||||||||||||||
| Acceleration | 5.7 s | 6.3 s | ||||||||||||||||
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph | ||||||||||||||||
| Lightness | 1,755 kg 3,869 lb | 1,875 kg 4,134 lb | ||||||||||||||||
| Fuel consumption | 11.3 L/100 km 20.8 mpg US 25.0 mpg UK | 12.5 L/100 km 18.8 mpg US 22.6 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 726 km 451 mi | 688 km 428 mi | ||||||||||||||||
| Trunk score | 520 L 18.4 cu ft | 430 L 15.2 cu ft | ||||||||||||||||
| Power-to-weight score | 219 hp/t 164 kW/t 4.6 kg/hp | 171 hp/t 127 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
| Vehicle | Jaguar XJ (X351) 5.0 V8 | Jaguar XJ (X300) R 4.0 24V Sport |
|---|---|---|
| Consumption | 11.3 L/100 km20.8 mpg US25 mpg UK | 12.5 L/100 km18.8 mpg US22.6 mpg UK |
| Cost / 100 km | 19.78 LC100 km | 21.88 LC100 km |
| Cost / 100 mi | 31.82 LC100 mi | 35.20 LC100 mi |
| Annual fuel used | 1,695 L448 US gal373 UK gal | 1,875 L495 US gal412 UK gal |
| Annual fuel cost | 2,966 LC/year | 3,281 LC/year |
Head-to-head comparisons
Jaguar XJ (X351) 5.0 V8
- Has 65 hp more
- Has 3 Nm more
- Is 120 kg lighter
- Is 0.6 s quicker from 0-100 km/h
- Uses 1.2 L/100 km less fuel
- Has 49 hp/t better power-to-weight
- Has 38 km (23 mi) more estimated range
- Has 90 L more trunk volume
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Most powerful
- Highest torque
- Lightest
- Lowest combined fuel consumption
- Best power-to-weight ratio
- Best estimated range
- Largest trunk
Jaguar XJ (X300) R 4.0 24V Sport
No measurable advantages in the available data.
Cons
- Slowest 0-100 km/h
- Lowest power
- Highest combined fuel consumption
- Heaviest
- Smallest trunk
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