Car comparison

Porsche 911 Cabriolet (991) Turbo S 3.8vsAUDI R8 Spyder (42) GT 5.2 FSI V10

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

New comparison

Porsche 911 Cabriolet (991)

Turbo S 3.8

560 hp3800 ccGasolineAWDDual-clutchTwin-turboCabriolet / convertible2013-2016
VS

AUDI R8 Spyder (42)

GT 5.2 FSI V10

560 hp5204 ccGasolineAWDAutomaticNaturally aspiratedCabriolet / convertible2011-2012

Comparison overview

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

Best choices

Porsche 911 Cabriolet (991) Turbo S 3.8

  • Quickest 0-100 km/h
    3.1 s
  • Fastest top speed
    318 km/h
    198 mph
  • Most powerful
    560 hp
    418 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    9.7 L/100 km
    24.2 mpg US
    29.1 mpg UK
  • Lowest city consumption
    13.2 L/100 km
    17.8 mpg US
    21.4 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Lowest CO2 emissions
    227 g/km
  • Best estimated range
    701 km
    436 mi
  • Best overall score
    78/100
  • Best performance score
    93/100
  • Best economy score
    81/100
  • Best practicality score
    47/100

Specification comparison

Specification comparison
ModelPorsche911 Cabriolet (991)Turbo S 3.8AUDIR8 Spyder (42)GT 5.2 FSI V10
Power
560hp418kW
560hp418kW
Torque
700Nm516lb-ft
540Nm398lb-ft
Curb weight
1,670kg3,682lb
1,640kg3,616lb
Gross weight
2,045kg4,508lb
1,940kg4,277lb
Top speed
318 km/h
198 mph
317 km/h
197 mph
To 99% top speed
44.3s99% target: 315 km/h / 196 mph
Calculated
56.9s99% target: 314 km/h / 195 mph
Calculated
0-100 km/h
3.1s
3.8s
0-200 km/h
8.7s
Calculated
10.8s
Calculated
0-60 mph
3.0s
Calculated
3.6s
Calculated
Fuel consumption
9.7L/100 km24.2mpg US29.1mpg UK
14.2L/100 km16.6mpg US19.9mpg UK
Fuel consumption city
13.2L/100 km17.8mpg US21.4mpg UK
21.5L/100 km10.9mpg US13.1mpg UK
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
10.2L/100 km23.1mpg US27.7mpg UK
Quarter mile
10.6s
Calculated
11.5s
Calculated
Power-to-weight
335hp/t250kW/t152hp/1000 lb
Calculated
341hp/t255kW/t155hp/1000 lb
Calculated
Torque-to-weight
419Nm/t280lb-ft/ton
Calculated
329Nm/t220lb-ft/ton
Calculated
Estimated range
701km436mi
Calculated
563km350mi
Calculated
Displacement
3,800cc232cu in
5,204cc318cu in
Length
4,506mm177in
4,434mm175in
Width
1,880mm74in
1,904mm75in
Height
1,295mm51in
1,244mm49in
Wheelbase
2,450mm96in
2,650mm104in
Front track
1,539mm61in
1,638mm64in
Rear track
1,590mm63in
1,595mm63in
Trunk volume-
100L
Doors
2
2
Seats
4
2
Fuel tank
68L
80L
CO2 emissions
227g/km
332g/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.

Porsche 911 Cabriolet (991) Turbo S 3.8AUDI R8 Spyder (42) GT 5.2 FSI V10PowerTorque
  • Porsche 911 Cabriolet (991) Turbo S 3.8: Power / Torque
  • AUDI R8 Spyder (42) GT 5.2 FSI V10: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Cabriolet (991)Turbo S 3.86,500-6,750 rpm2,100-4,250 rpm7,000 rpm
AUDIR8 Spyder (42)GT 5.2 FSI V108,000 rpm6,500 rpm8,700 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 Cabriolet (991)Turbo S 3.8AUDIR8 Spyder (42)GT 5.2 FSI V10
Acceleration checkpoints
0-60 mph
0-97 km/h
3.0 s
3.6 s
0-100 km/h
0-62 mph
3.1 s
3.8 s
0-200 km/h
0-124 mph
8.7 s
10.8 s
Top speed
318 km/h
198 mph
317 km/h
197 mph
Drag race simulation
60 ft
18 m
1.9 s
2.0 s
330 ft
101 m
4.7 s
5.2 s
1/8 mile
201 m
7.0 s
7.6 s
1000 ft
305 m
9.0 s
9.8 s
1/4 mile
402 m
10.6 s
11.5 s
Trap speed
1/4 mile
402 m
222 km/h
138 mph
207 km/h
128 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo S 3.8
560 hp
418 kW
AUDIR8 Spyder (42)GT 5.2 FSI V10
560 hp
418 kW

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo S 3.8
700 Nm
516 lb-ft
AUDIR8 Spyder (42)GT 5.2 FSI V10
540 Nm
398 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo S 3.8
1,670 kg
3,682 lb
AUDIR8 Spyder (42)GT 5.2 FSI V10
1,640 kg
3,616 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo S 3.8
318 km/h
198 mph
AUDIR8 Spyder (42)GT 5.2 FSI V10
317 km/h
197 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo S 3.83.1 s
AUDIR8 Spyder (42)GT 5.2 FSI V103.8 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (991) Turbo S 3.8 and AUDI R8 Spyder (42) GT 5.2 FSI V10: 0.7 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo S 3.8
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
AUDIR8 Spyder (42)GT 5.2 FSI V10
14.2 L/100 km
16.6 mpg US
19.9 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (991) Turbo S 3.8 and AUDI R8 Spyder (42) GT 5.2 FSI V10: 4.5 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
Porsche911 Cabriolet (991)Turbo S 3.8
335 hp/t
250 kW/t
3.0 kg/hp
AUDIR8 Spyder (42)GT 5.2 FSI V10
341 hp/t
255 kW/t
2.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo S 3.8
701 km
436 mi
AUDIR8 Spyder (42)GT 5.2 FSI V10
563 km
350 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 Cabriolet (991)Turbo S 3.8
560 hp
418 kW
3.1 s
318 km/h
198 mph
AUDIR8 Spyder (42)GT 5.2 FSI V10
560 hp
418 kW
3.8 s
317 km/h
197 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
Porsche911 Cabriolet (991)Turbo S 3.8
Power
560 hp
418 kW
0-100 km/h3.1 s
Top speed
318 km/h
198 mph
Doors/seats
2 doors
4 seats
Trunk-
Length
4,506 mm
177.4 in
Height
1,295 mm
51.0 in
AUDIR8 Spyder (42)GT 5.2 FSI V10
Power
560 hp
418 kW
0-100 km/h3.8 s
Top speed
317 km/h
197 mph
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,434 mm
174.6 in
Height
1,244 mm
49.0 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
Porsche911 Cabriolet (991)Turbo S 3.8
Power
560 hp
418 kW
0-100 km/h3.1 s
Top speed
318 km/h
198 mph
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
AUDIR8 Spyder (42)GT 5.2 FSI V10
Power
560 hp
418 kW
0-100 km/h3.8 s
Top speed
317 km/h
197 mph
14.2 L/100 km
16.6 mpg US
19.9 mpg UK

Porsche 911 Cabriolet (991) Turbo S 3.8 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
Porsche911 Cabriolet (991)Turbo S 3.8
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
3.1 s
AUDIR8 Spyder (42)GT 5.2 FSI V10
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
3.8 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
Porsche911 Cabriolet (991)Turbo S 3.8
335 hp/t
250 kW/t
3.0 kg/hp
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
AUDIR8 Spyder (42)GT 5.2 FSI V10
341 hp/t
255 kW/t
2.9 kg/hp
14.2 L/100 km
16.6 mpg US
19.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 Cabriolet (991)Turbo S 3.8AUDIR8 Spyder (42)GT 5.2 FSI V10
Power
560 hp
418 kW
560 hp
418 kW
Torque
700 Nm
516 lb-ft
540 Nm
398 lb-ft
Acceleration
3.1 s
3.8 s
Top speed
318 km/h
198 mph
317 km/h
197 mph
Lightness
1,670 kg
3,682 lb
1,640 kg
3,616 lb
Fuel consumption
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk-
Length
4,506 mm
177.4 in
Height
1,295 mm
51.0 in
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,434 mm
174.6 in
Height
1,244 mm
49.0 in
Range score
701 km
436 mi
563 km
350 mi
CO2 score
227 g/km
332 g/km
Trunk score
-
100 L
3.5 cu ft
Power-to-weight score
335 hp/t
250 kW/t
3.0 kg/hp
341 hp/t
255 kW/t
2.9 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
VehiclePorsche 911 Cabriolet (991) Turbo S 3.8AUDI R8 Spyder (42) GT 5.2 FSI V10
Consumption9.7 L/100 km24.2 mpg US29.1 mpg UK14.2 L/100 km16.6 mpg US19.9 mpg UK
Cost / 100 km16.97 LC100 km24.85 LC100 km
Cost / 100 mi27.32 LC100 mi39.99 LC100 mi
Annual fuel used1,455 L384 US gal320 UK gal2,130 L563 US gal469 UK gal
Annual fuel cost2,546 LC/year3,728 LC/year

Head-to-head comparisons

Porsche 911 Cabriolet (991) Turbo S 3.8

  • Has 160 Nm more
  • Is 0.7 s quicker from 0-100 km/h
  • Has 1 km/h (1 mph) higher top speed
  • Uses 4.5 L/100 km less fuel
  • Has 138 km (86 mi) more estimated range
  • Emits 105 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Heaviest

AUDI R8 Spyder (42) GT 5.2 FSI V10

  • Is 30 kg lighter
  • Has 6 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Cabriolet (991) Turbo S 3.8
AUDI R8 Spyder (42) GT 5.2 FSI V10
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2 vehicles selected

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