Car comparison

Porsche 928 5.4 GTS V8vsJaguar XJS Coupe 6.0

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

New comparison

Porsche 928

5.4 GTS V8

350 hp5397 ccGasolineRWDManualNaturally aspiratedCoupe1991-1995
VS

Jaguar XJS Coupe

6.0

318 hp5994 ccGasolineRWDAutomaticNaturally aspiratedCoupe1991-1994

Comparison overview

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

Best choices

Porsche 928 5.4 GTS V8

  • Quickest 0-100 km/h
    5.7 s
  • Fastest top speed
    285 km/h
    177 mph Unrestricted
    275 km/h
    171 mph Restricted
  • Most powerful
    350 hp
    261 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lightest
    1,620 kg
    3,571 lb
  • Best power-to-weight
    216 hp/t
    161 kW/t
    4.6 kg/hp
  • Lowest combined fuel consumption
    12.0 L/100 km
    19.6 mpg US
    23.5 mpg UK
  • Lowest city consumption
    20.8 L/100 km
    11.3 mpg US
    13.6 mpg UK
  • Lowest highway consumption
    9.8 L/100 km
    24.0 mpg US
    28.8 mpg UK
  • Best estimated range
    717 km
    445 mi
  • Best overall score
    63/100
  • Best performance score
    72/100
  • Best economy score
    75/100

Specification comparison

Specification comparison
ModelPorsche9285.4 GTS V8JaguarXJS Coupe6.0
Power
350hp261kW
318hp237kW
Torque
500Nm369lb-ft
463Nm341lb-ft
Curb weight
1,620kg3,571lb
1,825kg4,023lb
Gross weight
1,960kg4,321lb
2,175kg4,795lb
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Calculated
245 km/h
152 mph
To 99% top speed
86.3s99% target: 282 km/h / 175 mph
Calculated
94.8s99% target: 243 km/h / 151 mph
Calculated
0-100 km/h
5.7s
7.4s
0-200 km/h
18.6s
Calculated
29.3s
Calculated
0-60 mph
5.4s
Calculated
7.0s
Calculated
Fuel consumption
12L/100 km19.6mpg US23.5mpg UK
13L/100 km18.1mpg US21.7mpg UK
Fuel consumption city
20.8L/100 km11.3mpg US13.6mpg UK
21.9L/100 km10.7mpg US12.9mpg UK
Fuel consumption highway
9.8L/100 km24mpg US28.8mpg UK
10.6L/100 km22.2mpg US26.6mpg UK
Quarter mile
13.7s
Calculated
15.3s
Calculated
Power-to-weight
216hp/t161kW/t98hp/1000 lb
Calculated
174hp/t130kW/t79hp/1000 lb
Calculated
Torque-to-weight
309Nm/t207lb-ft/ton
Calculated
254Nm/t170lb-ft/ton
Calculated
Estimated range
717km445mi
Calculated
685km425mi
Calculated
Displacement
5,397cc329cu in
5,994cc366cu in
Length
4,523mm178in
4,820mm190in
Width
1,890mm74in
1,793mm71in
Height
1,282mm50in
1,279mm50in
Wheelbase
2,500mm98in
2,588mm102in
Front track
1,551mm61in
1,489mm59in
Rear track
1,616mm64in
1,504mm59in
Ground clearance
115mm5in
-
Trunk volume
200L
407L
Max trunk volume
400L
-
Doors
2
2
Seats
4
4
Fuel tank
86L
89L

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.

Porsche 928 5.4 GTS V8Jaguar XJS Coupe 6.0PowerTorque
  • Porsche 928 5.4 GTS V8: Power / Torque
  • Jaguar XJS Coupe 6.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche9285.4 GTS V85,700 rpm4,250 rpm6,800 rpm
JaguarXJS Coupe6.05,400 rpm3,750 rpm5,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche9285.4 GTS V8JaguarXJS Coupe6.0
Acceleration checkpoints
0-60 mph
0-97 km/h
5.4 s
7.0 s
0-100 km/h
0-62 mph
5.7 s
7.4 s
0-200 km/h
0-124 mph
18.6 s
29.3 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Likely limited
245 km/h
152 mph
Drag race simulation
60 ft
18 m
2.3 s
2.5 s
330 ft
101 m
6.1 s
6.7 s
1/8 mile
201 m
9.1 s
10.0 s
1000 ft
305 m
11.6 s
12.9 s
1/4 mile
402 m
13.7 s
15.3 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
152 km/h
95 mph

Power comparison

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

Chart data table
VehicleValue
Porsche9285.4 GTS V8
350 hp
261 kW
JaguarXJS Coupe6.0
318 hp
237 kW

Porsche 928 5.4 GTS V8 has 32 hp more than Jaguar XJS Coupe 6.0.

The biggest power difference is between Jaguar XJS Coupe 6.0 and Porsche 928 5.4 GTS V8: 32 hp (24 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche9285.4 GTS V8
500 Nm
369 lb-ft
JaguarXJS Coupe6.0
463 Nm
341 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche9285.4 GTS V8
1,620 kg
3,571 lb
JaguarXJS Coupe6.0
1,825 kg
4,023 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Porsche9285.4 GTS V8
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
JaguarXJS Coupe6.0
245 km/h
152 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche9285.4 GTS V85.7 s
JaguarXJS Coupe6.07.4 s

The biggest 0-100 km/h difference is between Porsche 928 5.4 GTS V8 and Jaguar XJS Coupe 6.0: 1.7 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Porsche9285.4 GTS V8
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
JaguarXJS Coupe6.0
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

The biggest fuel consumption difference is between Porsche 928 5.4 GTS V8 and Jaguar XJS Coupe 6.0: 1.0 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
Porsche9285.4 GTS V8
216 hp/t
161 kW/t
4.6 kg/hp
JaguarXJS Coupe6.0
174 hp/t
130 kW/t
5.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche9285.4 GTS V8
717 km
445 mi
JaguarXJS Coupe6.0
685 km
425 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche9285.4 GTS V8
350 hp
261 kW
5.7 s
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
JaguarXJS Coupe6.0
318 hp
237 kW
7.4 s
245 km/h
152 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
Porsche9285.4 GTS V8
Power
350 hp
261 kW
0-100 km/h5.7 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Doors/seats
2 doors
4 seats
Trunk
200 L
7.1 cu ft
Length
4,523 mm
178.1 in
Height
1,282 mm
50.5 in
JaguarXJS Coupe6.0
Power
318 hp
237 kW
0-100 km/h7.4 s
Top speed
245 km/h
152 mph
Doors/seats
2 doors
4 seats
Trunk
407 L
14.4 cu ft
Length
4,820 mm
189.8 in
Height
1,279 mm
50.4 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
Porsche9285.4 GTS V8
Power
350 hp
261 kW
0-100 km/h5.7 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
JaguarXJS Coupe6.0
Power
318 hp
237 kW
0-100 km/h7.4 s
Top speed
245 km/h
152 mph
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

Porsche 928 5.4 GTS 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
Porsche9285.4 GTS V8
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
5.7 s
JaguarXJS Coupe6.0
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
7.4 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
Porsche9285.4 GTS V8
216 hp/t
161 kW/t
4.6 kg/hp
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
JaguarXJS Coupe6.0
174 hp/t
130 kW/t
5.7 kg/hp
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche9285.4 GTS V8JaguarXJS Coupe6.0
Power
350 hp
261 kW
318 hp
237 kW
Torque
500 Nm
369 lb-ft
463 Nm
341 lb-ft
Acceleration
5.7 s
7.4 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
245 km/h
152 mph
Lightness
1,620 kg
3,571 lb
1,825 kg
4,023 lb
Fuel consumption
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
200 L
7.1 cu ft
Length
4,523 mm
178.1 in
Height
1,282 mm
50.5 in
Doors/seats
2 doors
4 seats
Trunk
407 L
14.4 cu ft
Length
4,820 mm
189.8 in
Height
1,279 mm
50.4 in
Range score
717 km
445 mi
685 km
425 mi
Trunk score
200 L
7.1 cu ft
407 L
14.4 cu ft
Power-to-weight score
216 hp/t
161 kW/t
4.6 kg/hp
174 hp/t
130 kW/t
5.7 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
VehiclePorsche 928 5.4 GTS V8Jaguar XJS Coupe 6.0
Consumption12 L/100 km19.6 mpg US23.5 mpg UK13 L/100 km18.1 mpg US21.7 mpg UK
Cost / 100 km21.00 LC100 km22.75 LC100 km
Cost / 100 mi33.80 LC100 mi36.61 LC100 mi
Annual fuel used1,800 L476 US gal396 UK gal1,950 L515 US gal429 UK gal
Annual fuel cost3,150 LC/year3,413 LC/year

Head-to-head comparisons

Porsche 928 5.4 GTS V8

  • Has 32 hp more
  • Has 37 Nm more
  • Is 205 kg lighter
  • Is 1.7 s quicker from 0-100 km/h
  • Has 40 km/h (25 mph) higher top speed
  • Uses 1.0 L/100 km less fuel
  • Has 42 hp/t better power-to-weight
  • Has 32 km (20 mi) more estimated range

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

Cons

  • Smallest trunk

Jaguar XJS Coupe 6.0

  • Has 207 L more trunk volume

Pros

  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 928 5.4 GTS V8
Jaguar XJS Coupe 6.0
Compare selected cars
2 vehicles selected

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