Car comparison

AUDI R8 Spyder (42) GT 5.2 FSI V10vsPorsche 911 Cabriolet (997) · Facelift 2008 Turbo S 3.8

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

New comparison

AUDI R8 Spyder (42)

GT 5.2 FSI V10

560 hp5204 ccGasolineAWDAutomaticNaturally aspiratedCabriolet / convertible2011-2012
VS

Porsche 911 Cabriolet (997) · Facelift 2008

Turbo S 3.8

530 hp3800 ccGasolineAWDDual-clutchTwin-turboCabriolet / convertible2010-2011

Comparison overview

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

Best choices

Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8

  • Quickest 0-100 km/h
    3.4 s
  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    11.5 L/100 km
    20.5 mpg US
    24.6 mpg UK
  • Lowest city consumption
    16.7 L/100 km
    14.1 mpg US
    16.9 mpg UK
  • Lowest highway consumption
    8.2 L/100 km
    28.7 mpg US
    34.4 mpg UK
  • Best estimated range
    583 km
    362 mi
  • Largest trunk
    105 L
  • Best overall score
    78/100
  • Best performance score
    92/100
  • Best economy score
    76/100
  • Best practicality score
    47/100

Specification comparison

Specification comparison
ModelAUDIR8 Spyder (42)GT 5.2 FSI V10Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
560hp418kW
530hp395kW
Torque
540Nm398lb-ft
700Nm516lb-ft
Curb weight
1,640kg3,616lb
1,660kg3,660lb
Gross weight
1,940kg4,277lb
2,010kg4,431lb
Top speed
317 km/h
197 mph
315 km/h
196 mph
To 99% top speed
56.9s99% target: 314 km/h / 195 mph
Calculated
74.1s99% target: 312 km/h / 194 mph
Calculated
0-100 km/h
3.8s
3.4s
0-200 km/h
10.8s
Calculated
11.3s
0-60 mph
3.6s
Calculated
3.2s
Calculated
Fuel consumption
14.2L/100 km16.6mpg US19.9mpg UK
11.5L/100 km20.5mpg US24.6mpg UK
Fuel consumption city
21.5L/100 km10.9mpg US13.1mpg UK
16.7L/100 km14.1mpg US16.9mpg UK
Fuel consumption highway
10.2L/100 km23.1mpg US27.7mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Quarter mile
11.5s
Calculated
11.3s
Calculated
Power-to-weight
341hp/t255kW/t155hp/1000 lb
Calculated
319hp/t238kW/t145hp/1000 lb
Calculated
Torque-to-weight
329Nm/t220lb-ft/ton
Calculated
422Nm/t282lb-ft/ton
Calculated
Estimated range
563km350mi
Calculated
583km362mi
Calculated
Displacement
5,204cc318cu in
3,800cc232cu in
Length
4,434mm175in
4,450mm175in
Width
1,904mm75in
1,852mm73in
Height
1,244mm49in
1,300mm51in
Wheelbase
2,650mm104in
2,350mm93in
Front track
1,638mm64in
-
Rear track
1,595mm63in
-
Trunk volume
100L
-
Max trunk volume-
105L
Doors
2
2
Seats
2
4
Fuel tank
80L
67L
CO2 emissions
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.

AUDI R8 Spyder (42) GT 5.2 FSI V10Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8PowerTorque
  • AUDI R8 Spyder (42) GT 5.2 FSI V10: Power / Torque
  • Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIR8 Spyder (42)GT 5.2 FSI V108,000 rpm6,500 rpm8,700 rpm
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.86,250-6,750 rpm2,100-4,250 rpm7,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIR8 Spyder (42)GT 5.2 FSI V10Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.6 s
3.2 s
0-100 km/h
0-62 mph
3.8 s
3.4 s
0-200 km/h
0-124 mph
10.8 s
11.3 s
Top speed
317 km/h
197 mph
315 km/h
196 mph
Drag race simulation
60 ft
18 m
2.0 s
1.8 s
330 ft
101 m
5.2 s
4.8 s
1/8 mile
201 m
7.6 s
7.4 s
1000 ft
305 m
9.8 s
9.5 s
1/4 mile
402 m
11.5 s
11.3 s
Trap speed
1/4 mile
402 m
207 km/h
128 mph
200 km/h
124 mph

Power comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)GT 5.2 FSI V10
560 hp
418 kW
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
530 hp
395 kW

AUDI R8 Spyder (42) GT 5.2 FSI V10 has 30 hp more than Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8.

The biggest power difference is between Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8 and AUDI R8 Spyder (42) GT 5.2 FSI V10: 30 hp (22 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)GT 5.2 FSI V10
540 Nm
398 lb-ft
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
700 Nm
516 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)GT 5.2 FSI V10
1,640 kg
3,616 lb
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
1,660 kg
3,660 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)GT 5.2 FSI V10
317 km/h
197 mph
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
315 km/h
196 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)GT 5.2 FSI V103.8 s
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.83.4 s

Although AUDI R8 Spyder (42) GT 5.2 FSI V10 has more power, Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8 and AUDI R8 Spyder (42) GT 5.2 FSI V10: 0.4 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)GT 5.2 FSI V10
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8 and AUDI R8 Spyder (42) GT 5.2 FSI V10: 2.7 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
AUDIR8 Spyder (42)GT 5.2 FSI V10
341 hp/t
255 kW/t
2.9 kg/hp
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
319 hp/t
238 kW/t
3.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)GT 5.2 FSI V10
563 km
350 mi
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
583 km
362 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIR8 Spyder (42)GT 5.2 FSI V10
560 hp
418 kW
3.8 s
317 km/h
197 mph
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
530 hp
395 kW
3.4 s
315 km/h
196 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
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
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
530 hp
395 kW
0-100 km/h3.4 s
Top speed
315 km/h
196 mph
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 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
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
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
530 hp
395 kW
0-100 km/h3.4 s
Top speed
315 km/h
196 mph
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Porsche 911 Cabriolet (997) Facelift 2008 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
AUDIR8 Spyder (42)GT 5.2 FSI V10
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
3.8 s
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
3.4 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
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
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
319 hp/t
238 kW/t
3.1 kg/hp
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIR8 Spyder (42)GT 5.2 FSI V10Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
560 hp
418 kW
530 hp
395 kW
Torque
540 Nm
398 lb-ft
700 Nm
516 lb-ft
Acceleration
3.8 s
3.4 s
Top speed
317 km/h
197 mph
315 km/h
196 mph
Lightness
1,640 kg
3,616 lb
1,660 kg
3,660 lb
Fuel consumption
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
Practicality
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
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 in
Range score
563 km
350 mi
583 km
362 mi
CO2 score
332 g/km
-
Trunk score
100 L
3.5 cu ft
105 L
3.7 cu ft
Power-to-weight score
341 hp/t
255 kW/t
2.9 kg/hp
319 hp/t
238 kW/t
3.1 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
VehicleAUDI R8 Spyder (42) GT 5.2 FSI V10Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8
Consumption14.2 L/100 km16.6 mpg US19.9 mpg UK11.5 L/100 km20.5 mpg US24.6 mpg UK
Cost / 100 km24.85 LC100 km20.13 LC100 km
Cost / 100 mi39.99 LC100 mi32.39 LC100 mi
Annual fuel used2,130 L563 US gal469 UK gal1,725 L456 US gal379 UK gal
Annual fuel cost3,728 LC/year3,019 LC/year

Head-to-head comparisons

AUDI R8 Spyder (42) GT 5.2 FSI V10

  • Has 30 hp more
  • Is 20 kg lighter
  • Has 2 km/h (1 mph) higher top speed
  • Has 22 hp/t better power-to-weight

Pros

  • Highest top speed
  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Smallest trunk

Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8

  • Has 160 Nm more
  • Is 0.4 s quicker from 0-100 km/h
  • Uses 2.7 L/100 km less fuel
  • Has 19 km (12 mi) more estimated range
  • Has 5 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI R8 Spyder (42) GT 5.2 FSI V10
Porsche 911 Cabriolet (997) Turbo S 3.8
Compare selected cars
2 vehicles selected

Popular comparisons

GT 5.2 FSI V10
GT 5.2 V10
VS
AUDIR8 Spyder (42)GT 5.2 FSI V10vsAUDIR8 Coupe (42)GT 5.2 V10
Turbo S 3.8
Turbo 3.8
VS
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8vsPorsche911 Cabriolet (991)Turbo 3.8
GT 5.2 FSI V10
5.2 FSI V10 plus
VS
AUDIR8 Spyder (42)GT 5.2 FSI V10vsAUDIR8 Coupe (42)Facelift 20125.2 FSI V10 plus
Turbo S 3.8
Turbo 3.6
VS
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8vsPorsche911 Cabriolet (997)Turbo 3.6
GT 5.2 FSI V10
5.2 FSI V10
VS
AUDIR8 Spyder (42)GT 5.2 FSI V10vsAUDIR8 Spyder (42)Facelift 20125.2 FSI V10
Turbo S 3.8
Turbo S 3.8
VS
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8vsPorsche911 (997)Facelift 2008Turbo S 3.8
GT 5.2 FSI V10
R-S 5.0 V8
VS
AUDIR8 Spyder (42)GT 5.2 FSI V10vsJaguarXK Convertible (X150)Facelift 2011R-S 5.0 V8
Turbo S 3.8
GT3 S/C 4.0
VS
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8vsPorsche911 Cabriolet (992)Facelift 2024GT3 S/C 4.0
Turbo S 3.8
Turbo 3.8
VS
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8vsPorsche911 Cabriolet (992)Turbo 3.8
GT 5.2 FSI V10
Turbo 3.8
VS
AUDIR8 Spyder (42)GT 5.2 FSI V10vsPorsche911 Cabriolet (997)Facelift 2008Turbo 3.8
Turbo S 3.8
GT2 3.6
VS
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8vsPorsche911 (997)GT2 3.6
GT 5.2 FSI V10
4.3 i V8 32V
VS
AUDIR8 Spyder (42)GT 5.2 FSI V10vsFerrariF430 Spider4.3 i V8 32V
AUDI R8 Spyder (42) GT 5.2 FSI V10 vs Porsche 911 Cabriolet (997) · Facelift 2008 Turbo S 3.8 - car comparison - FastVsFaster