Car comparison

AUDI R8 Spyder (42) · Facelift 2012 4.2 FSI V8vsPorsche 911 (991) Carrera 4S 3.8

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

New comparison

AUDI R8 Spyder (42) · Facelift 2012

4.2 FSI V8

430 hp4163 ccGasolineAWDAutomaticNaturally aspiratedCoupe2012-2015
VS

Porsche 911 (991)

Carrera 4S 3.8

400 hp3800 ccGasolineAWDManualNaturally aspiratedCoupe2012-2015

Comparison overview

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

Best choices

Porsche 911 (991) Carrera 4S 3.8

  • Highest torque
    440 Nm
    325 lb-ft
  • Lightest
    1,465 kg
    3,230 lb
  • Best power-to-weight
    273 hp/t
    204 kW/t
    3.7 kg/hp
  • Lowest combined fuel consumption
    9.9 L/100 km
    23.8 mpg US
    28.5 mpg UK
  • Lowest city consumption
    13.8 L/100 km
    17.0 mpg US
    20.5 mpg UK
  • Lowest highway consumption
    7.6 L/100 km
    30.9 mpg US
    37.2 mpg UK
  • Lowest CO2 emissions
    233 g/km
  • Best estimated range
    687 km
    427 mi
  • Largest trunk
    385 L
  • Best overall score
    70/100
  • Best performance score
    79/100
  • Best economy score
    80/100
  • Best practicality score
    50/100

Specification comparison

Specification comparison
ModelAUDIR8 Spyder (42)Facelift 20124.2 FSI V8Porsche911 (991)Carrera 4S 3.8
Power
430hp321kW
400hp298kW
Torque
430Nm317lb-ft
440Nm325lb-ft
Curb weight
1,685kg3,715lb
1,465kg3,230lb
Gross weight
1,985kg4,376lb
1,875kg4,134lb
Top speed
300 km/h
186 mph
299 km/h
186 mph
To 99% top speed
72.7s99% target: 297 km/h / 185 mph
Calculated
64.1s99% target: 296 km/h / 184 mph
Calculated
0-100 km/h
4.5s
4.5s
0-200 km/h
14.1s
Calculated
13.4s
Calculated
0-60 mph
4.3s
Calculated
4.3s
Calculated
Fuel consumption
12.6L/100 km18.7mpg US22.4mpg UK
9.9L/100 km23.8mpg US28.5mpg UK
Fuel consumption city
19.6L/100 km12mpg US14.4mpg UK
13.8L/100 km17mpg US20.5mpg UK
Fuel consumption highway
8.6L/100 km27.4mpg US32.8mpg UK
7.6L/100 km30.9mpg US37.2mpg UK
Quarter mile
12.5s
Calculated
12.4s
Calculated
Power-to-weight
255hp/t190kW/t116hp/1000 lb
Calculated
273hp/t204kW/t124hp/1000 lb
Calculated
Torque-to-weight
255Nm/t171lb-ft/ton
Calculated
300Nm/t201lb-ft/ton
Calculated
Estimated range
635km395mi
Calculated
687km427mi
Calculated
Displacement
4,163cc254cu in
3,800cc232cu in
Length
4,440mm175in
4,491mm177in
Width
1,904mm75in
1,852mm73in
Height
1,244mm49in
1,296mm51in
Wheelbase
2,650mm104in
2,450mm96in
Front track
1,638mm64in
1,538mm61in
Rear track
1,595mm63in
1,552mm61in
Trunk volume
100L
385L
Doors
2
2
Seats
2
4
Fuel tank
80L
68L
CO2 emissions
294g/km
233g/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) Facelift 2012 4.2 FSI V8Porsche 911 (991) Carrera 4S 3.8PowerTorque
  • AUDI R8 Spyder (42) Facelift 2012 4.2 FSI V8: Power / Torque
  • Porsche 911 (991) Carrera 4S 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIR8 Spyder (42)Facelift 20124.2 FSI V87,900 rpm4,500-6,000 rpm8,150 rpm
Porsche911 (991)Carrera 4S 3.87,400 rpm5,600 rpm7,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIR8 Spyder (42)Facelift 20124.2 FSI V8Porsche911 (991)Carrera 4S 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
4.3 s
0-100 km/h
0-62 mph
4.5 s
4.5 s
0-200 km/h
0-124 mph
14.1 s
13.4 s
Top speed
300 km/h
186 mph
299 km/h
186 mph
Drag race simulation
60 ft
18 m
2.1 s
2.2 s
330 ft
101 m
5.5 s
5.5 s
1/8 mile
201 m
8.2 s
8.2 s
1000 ft
305 m
10.5 s
10.5 s
1/4 mile
402 m
12.5 s
12.4 s
Trap speed
1/4 mile
402 m
188 km/h
117 mph
192 km/h
119 mph

Power comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)Facelift 20124.2 FSI V8
430 hp
321 kW
Porsche911 (991)Carrera 4S 3.8
400 hp
298 kW

AUDI R8 Spyder (42) Facelift 2012 4.2 FSI V8 has 30 hp more than Porsche 911 (991) Carrera 4S 3.8.

The biggest power difference is between Porsche 911 (991) Carrera 4S 3.8 and AUDI R8 Spyder (42) Facelift 2012 4.2 FSI V8: 30 hp (22 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)Facelift 20124.2 FSI V8
430 Nm
317 lb-ft
Porsche911 (991)Carrera 4S 3.8
440 Nm
325 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)Facelift 20124.2 FSI V8
1,685 kg
3,715 lb
Porsche911 (991)Carrera 4S 3.8
1,465 kg
3,230 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)Facelift 20124.2 FSI V8
300 km/h
186 mph
Porsche911 (991)Carrera 4S 3.8
299 km/h
186 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)Facelift 20124.2 FSI V84.5 s
Porsche911 (991)Carrera 4S 3.84.5 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)Facelift 20124.2 FSI V8
12.6 L/100 km
18.7 mpg US
22.4 mpg UK
Porsche911 (991)Carrera 4S 3.8
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991) Carrera 4S 3.8 and AUDI R8 Spyder (42) Facelift 2012 4.2 FSI V8: 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)Facelift 20124.2 FSI V8
255 hp/t
190 kW/t
3.9 kg/hp
Porsche911 (991)Carrera 4S 3.8
273 hp/t
204 kW/t
3.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)Facelift 20124.2 FSI V8
635 km
395 mi
Porsche911 (991)Carrera 4S 3.8
687 km
427 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIR8 Spyder (42)Facelift 20124.2 FSI V8
430 hp
321 kW
4.5 s
300 km/h
186 mph
Porsche911 (991)Carrera 4S 3.8
400 hp
298 kW
4.5 s
299 km/h
186 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)Facelift 20124.2 FSI V8
Power
430 hp
321 kW
0-100 km/h4.5 s
Top speed
300 km/h
186 mph
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,440 mm
174.8 in
Height
1,244 mm
49.0 in
Porsche911 (991)Carrera 4S 3.8
Power
400 hp
298 kW
0-100 km/h4.5 s
Top speed
299 km/h
186 mph
Doors/seats
2 doors
4 seats
Trunk
385 L
13.6 cu ft
Length
4,491 mm
176.8 in
Height
1,296 mm
51.0 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
AUDIR8 Spyder (42)Facelift 20124.2 FSI V8
Power
430 hp
321 kW
0-100 km/h4.5 s
Top speed
300 km/h
186 mph
12.6 L/100 km
18.7 mpg US
22.4 mpg UK
Porsche911 (991)Carrera 4S 3.8
Power
400 hp
298 kW
0-100 km/h4.5 s
Top speed
299 km/h
186 mph
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

Porsche 911 (991) Carrera 4S 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)Facelift 20124.2 FSI V8
12.6 L/100 km
18.7 mpg US
22.4 mpg UK
4.5 s
Porsche911 (991)Carrera 4S 3.8
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
4.5 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)Facelift 20124.2 FSI V8
255 hp/t
190 kW/t
3.9 kg/hp
12.6 L/100 km
18.7 mpg US
22.4 mpg UK
Porsche911 (991)Carrera 4S 3.8
273 hp/t
204 kW/t
3.7 kg/hp
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIR8 Spyder (42)Facelift 20124.2 FSI V8Porsche911 (991)Carrera 4S 3.8
Power
430 hp
321 kW
400 hp
298 kW
Torque
430 Nm
317 lb-ft
440 Nm
325 lb-ft
Acceleration
4.5 s
4.5 s
Top speed
300 km/h
186 mph
299 km/h
186 mph
Lightness
1,685 kg
3,715 lb
1,465 kg
3,230 lb
Fuel consumption
12.6 L/100 km
18.7 mpg US
22.4 mpg UK
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,440 mm
174.8 in
Height
1,244 mm
49.0 in
Doors/seats
2 doors
4 seats
Trunk
385 L
13.6 cu ft
Length
4,491 mm
176.8 in
Height
1,296 mm
51.0 in
Range score
635 km
395 mi
687 km
427 mi
CO2 score
294 g/km
233 g/km
Trunk score
100 L
3.5 cu ft
385 L
13.6 cu ft
Power-to-weight score
255 hp/t
190 kW/t
3.9 kg/hp
273 hp/t
204 kW/t
3.7 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
VehicleAUDI R8 Spyder (42) Facelift 2012 4.2 FSI V8Porsche 911 (991) Carrera 4S 3.8
Consumption12.6 L/100 km18.7 mpg US22.4 mpg UK9.9 L/100 km23.8 mpg US28.5 mpg UK
Cost / 100 km22.05 LC100 km17.33 LC100 km
Cost / 100 mi35.49 LC100 mi27.88 LC100 mi
Annual fuel used1,890 L499 US gal416 UK gal1,485 L392 US gal327 UK gal
Annual fuel cost3,308 LC/year2,599 LC/year

Head-to-head comparisons

AUDI R8 Spyder (42) Facelift 2012 4.2 FSI V8

  • Has 30 hp more
  • Has 1 km/h (1 mph) higher top speed

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk
  • Highest CO2 emissions

Porsche 911 (991) Carrera 4S 3.8

  • Has 10 Nm more
  • Is 220 kg lighter
  • Uses 2.7 L/100 km less fuel
  • Has 18 hp/t better power-to-weight
  • Has 52 km (32 mi) more estimated range
  • Has 285 L more trunk volume
  • Emits 61 g/km less CO2

Pros

  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI R8 Spyder (42) 4.2 FSI V8
Porsche 911 (991) Carrera 4S 3.8
Compare selected cars
2 vehicles selected

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