Car comparison

Porsche 928 5.4 GTS V8vsBMW 8 Series (E31) 850Csi 5.6

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

BMW 8 Series (E31)

850Csi 5.6

380 hp5576 ccGasolineRWDManualNaturally aspiratedCoupe1992-1996

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
  • 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
  • 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 V8BMW8 Series (E31)850Csi 5.6
Power
350hp261kW
380hp283kW
Torque
500Nm369lb-ft
550Nm406lb-ft
Curb weight
1,620kg3,571lb
1,900kg4,189lb
Gross weight
1,960kg4,321lb
2,340kg5,159lb
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
86.3s99% target: 282 km/h / 175 mph
Calculated
83.2s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.7s
6.0s
0-200 km/h
18.6s
Calculated
21.1s
Calculated
0-60 mph
5.4s
Calculated
5.7s
Calculated
Fuel consumption
12L/100 km19.6mpg US23.5mpg UK
12.8L/100 km18.4mpg US22.1mpg UK
Fuel consumption city
20.8L/100 km11.3mpg US13.6mpg UK
-
Fuel consumption highway
9.8L/100 km24mpg US28.8mpg UK
-
Quarter mile
13.7s
Calculated
14.1s
Calculated
Power-to-weight
216hp/t161kW/t98hp/1000 lb
Calculated
200hp/t149kW/t91hp/1000 lb
Calculated
Torque-to-weight
309Nm/t207lb-ft/ton
Calculated
289Nm/t194lb-ft/ton
Calculated
Estimated range
717km445mi
Calculated
703km437mi
Calculated
Displacement
5,397cc329cu in
5,576cc340cu in
Length
4,523mm178in
4,780mm188in
Width
1,890mm74in
1,855mm73in
Height
1,282mm50in
1,330mm52in
Wheelbase
2,500mm98in
2,684mm106in
Front track
1,551mm61in
1,554mm61in
Rear track
1,616mm64in
1,562mm61in
Ground clearance
115mm5in
-
Trunk volume
200L
320L
Max trunk volume
400L
-
Doors
2
2
Seats
4
4
Fuel tank
86L
90L

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 V8BMW 8 Series (E31) 850Csi 5.6PowerTorque
  • Porsche 928 5.4 GTS V8: Power / Torque
  • BMW 8 Series (E31) 850Csi 5.6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche9285.4 GTS V85,700 rpm4,250 rpm6,800 rpm
BMW8 Series (E31)850Csi 5.65,300 rpm4,000 rpm5,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche9285.4 GTS V8BMW8 Series (E31)850Csi 5.6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.4 s
5.7 s
0-100 km/h
0-62 mph
5.7 s
6.0 s
0-200 km/h
0-124 mph
18.6 s
21.1 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.4 s
330 ft
101 m
6.1 s
6.2 s
1/8 mile
201 m
9.1 s
9.2 s
1000 ft
305 m
11.6 s
11.9 s
1/4 mile
402 m
13.7 s
14.1 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
167 km/h
103 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
BMW8 Series (E31)850Csi 5.6
380 hp
283 kW

BMW 8 Series (E31) 850Csi 5.6 has 30 hp more than Porsche 928 5.4 GTS V8.

The biggest power difference is between Porsche 928 5.4 GTS V8 and BMW 8 Series (E31) 850Csi 5.6: 30 hp (22 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
BMW8 Series (E31)850Csi 5.6
550 Nm
406 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
BMW8 Series (E31)850Csi 5.6
1,900 kg
4,189 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
BMW8 Series (E31)850Csi 5.6
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

Chart data table
VehicleValue
Porsche9285.4 GTS V85.7 s
BMW8 Series (E31)850Csi 5.66.0 s

Although BMW 8 Series (E31) 850Csi 5.6 has more power, Porsche 928 5.4 GTS V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 928 5.4 GTS V8 and BMW 8 Series (E31) 850Csi 5.6: 0.3 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
BMW8 Series (E31)850Csi 5.6
12.8 L/100 km
18.4 mpg US
22.1 mpg UK

The biggest fuel consumption difference is between Porsche 928 5.4 GTS V8 and BMW 8 Series (E31) 850Csi 5.6: 0.8 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
BMW8 Series (E31)850Csi 5.6
200 hp/t
149 kW/t
5.0 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
BMW8 Series (E31)850Csi 5.6
703 km
437 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
BMW8 Series (E31)850Csi 5.6
380 hp
283 kW
6.0 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.

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
BMW8 Series (E31)850Csi 5.6
Power
380 hp
283 kW
0-100 km/h6.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
320 L
11.3 cu ft
Length
4,780 mm
188.2 in
Height
1,330 mm
52.4 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
BMW8 Series (E31)850Csi 5.6
Power
380 hp
283 kW
0-100 km/h6.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
12.8 L/100 km
18.4 mpg US
22.1 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
BMW8 Series (E31)850Csi 5.6
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
6.0 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
BMW8 Series (E31)850Csi 5.6
200 hp/t
149 kW/t
5.0 kg/hp
12.8 L/100 km
18.4 mpg US
22.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche9285.4 GTS V8BMW8 Series (E31)850Csi 5.6
Power
350 hp
261 kW
380 hp
283 kW
Torque
500 Nm
369 lb-ft
550 Nm
406 lb-ft
Acceleration
5.7 s
6.0 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,620 kg
3,571 lb
1,900 kg
4,189 lb
Fuel consumption
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
12.8 L/100 km
18.4 mpg US
22.1 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
320 L
11.3 cu ft
Length
4,780 mm
188.2 in
Height
1,330 mm
52.4 in
Range score
717 km
445 mi
703 km
437 mi
Trunk score
200 L
7.1 cu ft
320 L
11.3 cu ft
Power-to-weight score
216 hp/t
161 kW/t
4.6 kg/hp
200 hp/t
149 kW/t
5.0 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 V8BMW 8 Series (E31) 850Csi 5.6
Consumption12 L/100 km19.6 mpg US23.5 mpg UK12.8 L/100 km18.4 mpg US22.1 mpg UK
Cost / 100 km21.00 LC100 km22.40 LC100 km
Cost / 100 mi33.80 LC100 mi36.05 LC100 mi
Annual fuel used1,800 L476 US gal396 UK gal1,920 L507 US gal422 UK gal
Annual fuel cost3,150 LC/year3,360 LC/year

Head-to-head comparisons

Porsche 928 5.4 GTS V8

  • Is 280 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 20 km/h (12 mph) higher top speed
  • Uses 0.8 L/100 km less fuel
  • Has 16 hp/t better power-to-weight
  • Has 14 km (8 mi) more estimated range

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

Cons

  • Lowest power
  • Smallest trunk

BMW 8 Series (E31) 850Csi 5.6

  • Has 30 hp more
  • Has 50 Nm more
  • Has 120 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 928 5.4 GTS V8
BMW 8 Series (E31) 850Csi 5.6
Compare selected cars
2 vehicles selected

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