Car comparison

AUDI R8 Coupe (42) 5.2 FSI V10vsPorsche 911 (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 Coupe (42)

5.2 FSI V10

525 hp5204 ccGasolineAWDAutomaticNaturally aspiratedCoupe2008-2010
VS

Porsche 911 (997) · Facelift 2008

Turbo S 3.8

530 hp3800 ccGasolineAWDDual-clutchTurbochargedCoupe2010-2011

Comparison overview

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

Best choices

Porsche 911 (997) Facelift 2008 Turbo S 3.8

  • Quickest 0-100 km/h
    3.3 s
  • Most powerful
    530 hp
    395 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Lightest
    1,585 kg
    3,494 lb
  • Best power-to-weight
    334 hp/t
    249 kW/t
    3.0 kg/hp
  • Lowest combined fuel consumption
    11.4 L/100 km
    20.6 mpg US
    24.8 mpg UK
  • Lowest city consumption
    16.5 L/100 km
    14.3 mpg US
    17.1 mpg UK
  • Lowest highway consumption
    8.1 L/100 km
    29.0 mpg US
    34.9 mpg UK
  • Lowest CO2 emissions
    268 g/km
  • Largest trunk
    105 L
  • Best overall score
    80/100
  • Best performance score
    93/100
  • Best economy score
    76/100
  • Best practicality score
    51/100

Specification comparison

Specification comparison
ModelAUDIR8 Coupe (42)5.2 FSI V10Porsche911 (997)Facelift 2008Turbo S 3.8
Power
525hp391kW
530hp395kW
Torque
530Nm391lb-ft
700Nm516lb-ft
Curb weight
1,625kg3,583lb
1,585kg3,494lb
Gross weight
1,925kg4,244lb
1,950kg4,299lb
Top speed
316 km/h
196 mph
315 km/h
196 mph
To 99% top speed
61.6s99% target: 313 km/h / 194 mph
Calculated
47.4s99% target: 312 km/h / 194 mph
Calculated
0-100 km/h
3.9s
3.3s
0-200 km/h
11.4s
Calculated
9.3s
Calculated
0-60 mph
3.7s
Calculated
3.2s
Calculated
Fuel consumption
13.9L/100 km16.9mpg US20.3mpg UK
11.4L/100 km20.6mpg US24.8mpg UK
Fuel consumption city
21.1L/100 km11.1mpg US13.4mpg UK
16.5L/100 km14.3mpg US17.1mpg UK
Fuel consumption highway
9.9L/100 km23.8mpg US28.5mpg UK
8.1L/100 km29mpg US34.9mpg UK
Quarter mile
11.7s
Calculated
10.9s
Calculated
Power-to-weight
323hp/t241kW/t147hp/1000 lb
Calculated
334hp/t249kW/t152hp/1000 lb
Calculated
Torque-to-weight
326Nm/t218lb-ft/ton
Calculated
442Nm/t296lb-ft/ton
Calculated
Estimated range
647km402mi
Calculated
588km365mi
Calculated
Displacement
5,204cc318cu in
3,800cc232cu in
Length
4,434mm175in
4,450mm175in
Width
1,930mm76in
1,852mm73in
Height
1,252mm49in
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
90L
67L
CO2 emissions
326g/km
268g/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 Coupe (42) 5.2 FSI V10Porsche 911 (997) Facelift 2008 Turbo S 3.8PowerTorque
  • AUDI R8 Coupe (42) 5.2 FSI V10: Power / Torque
  • Porsche 911 (997) Facelift 2008 Turbo S 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIR8 Coupe (42)5.2 FSI V108,000 rpm6,500 rpm8,250 rpm
Porsche911 (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 Coupe (42)5.2 FSI V10Porsche911 (997)Facelift 2008Turbo S 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.7 s
3.2 s
0-100 km/h
0-62 mph
3.9 s
3.3 s
0-200 km/h
0-124 mph
11.4 s
9.3 s
Top speed
316 km/h
196 mph
315 km/h
196 mph
Drag race simulation
60 ft
18 m
2.0 s
1.9 s
330 ft
101 m
5.2 s
4.9 s
1/8 mile
201 m
7.7 s
7.2 s
1000 ft
305 m
9.9 s
9.2 s
1/4 mile
402 m
11.7 s
10.9 s
Trap speed
1/4 mile
402 m
203 km/h
126 mph
217 km/h
135 mph

Power comparison

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

Chart data table
VehicleValue
AUDIR8 Coupe (42)5.2 FSI V10
525 hp
391 kW
Porsche911 (997)Facelift 2008Turbo S 3.8
530 hp
395 kW

Porsche 911 (997) Facelift 2008 Turbo S 3.8 has 5 hp more than AUDI R8 Coupe (42) 5.2 FSI V10.

The biggest power difference is between AUDI R8 Coupe (42) 5.2 FSI V10 and Porsche 911 (997) Facelift 2008 Turbo S 3.8: 5 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIR8 Coupe (42)5.2 FSI V10
530 Nm
391 lb-ft
Porsche911 (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 Coupe (42)5.2 FSI V10
1,625 kg
3,583 lb
Porsche911 (997)Facelift 2008Turbo S 3.8
1,585 kg
3,494 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 Coupe (42)5.2 FSI V10
316 km/h
196 mph
Porsche911 (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 Coupe (42)5.2 FSI V103.9 s
Porsche911 (997)Facelift 2008Turbo S 3.83.3 s

The biggest 0-100 km/h difference is between Porsche 911 (997) Facelift 2008 Turbo S 3.8 and AUDI R8 Coupe (42) 5.2 FSI V10: 0.6 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 Coupe (42)5.2 FSI V10
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
Porsche911 (997)Facelift 2008Turbo S 3.8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

The biggest fuel consumption difference is between Porsche 911 (997) Facelift 2008 Turbo S 3.8 and AUDI R8 Coupe (42) 5.2 FSI V10: 2.5 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
AUDIR8 Coupe (42)5.2 FSI V10
323 hp/t
241 kW/t
3.1 kg/hp
Porsche911 (997)Facelift 2008Turbo S 3.8
334 hp/t
249 kW/t
3.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIR8 Coupe (42)5.2 FSI V10
647 km
402 mi
Porsche911 (997)Facelift 2008Turbo S 3.8
588 km
365 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIR8 Coupe (42)5.2 FSI V10
525 hp
391 kW
3.9 s
316 km/h
196 mph
Porsche911 (997)Facelift 2008Turbo S 3.8
530 hp
395 kW
3.3 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 Coupe (42)5.2 FSI V10
Power
525 hp
391 kW
0-100 km/h3.9 s
Top speed
316 km/h
196 mph
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,434 mm
174.6 in
Height
1,252 mm
49.3 in
Porsche911 (997)Facelift 2008Turbo S 3.8
Power
530 hp
395 kW
0-100 km/h3.3 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 Coupe (42)5.2 FSI V10
Power
525 hp
391 kW
0-100 km/h3.9 s
Top speed
316 km/h
196 mph
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
Porsche911 (997)Facelift 2008Turbo S 3.8
Power
530 hp
395 kW
0-100 km/h3.3 s
Top speed
315 km/h
196 mph
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Porsche 911 (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 Coupe (42)5.2 FSI V10
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
3.9 s
Porsche911 (997)Facelift 2008Turbo S 3.8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
3.3 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 Coupe (42)5.2 FSI V10
323 hp/t
241 kW/t
3.1 kg/hp
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
Porsche911 (997)Facelift 2008Turbo S 3.8
334 hp/t
249 kW/t
3.0 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIR8 Coupe (42)5.2 FSI V10Porsche911 (997)Facelift 2008Turbo S 3.8
Power
525 hp
391 kW
530 hp
395 kW
Torque
530 Nm
391 lb-ft
700 Nm
516 lb-ft
Acceleration
3.9 s
3.3 s
Top speed
316 km/h
196 mph
315 km/h
196 mph
Lightness
1,625 kg
3,583 lb
1,585 kg
3,494 lb
Fuel consumption
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,434 mm
174.6 in
Height
1,252 mm
49.3 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
647 km
402 mi
588 km
365 mi
CO2 score
326 g/km
268 g/km
Trunk score
100 L
3.5 cu ft
105 L
3.7 cu ft
Power-to-weight score
323 hp/t
241 kW/t
3.1 kg/hp
334 hp/t
249 kW/t
3.0 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
VehicleAUDI R8 Coupe (42) 5.2 FSI V10Porsche 911 (997) Facelift 2008 Turbo S 3.8
Consumption13.9 L/100 km16.9 mpg US20.3 mpg UK11.4 L/100 km20.6 mpg US24.8 mpg UK
Cost / 100 km24.33 LC100 km19.95 LC100 km
Cost / 100 mi39.15 LC100 mi32.11 LC100 mi
Annual fuel used2,085 L551 US gal459 UK gal1,710 L452 US gal376 UK gal
Annual fuel cost3,649 LC/year2,993 LC/year

Head-to-head comparisons

AUDI R8 Coupe (42) 5.2 FSI V10

  • Has 1 km/h (1 mph) higher top speed
  • Has 60 km (37 mi) more estimated range

Pros

  • Highest top speed
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk
  • Highest CO2 emissions

Porsche 911 (997) Facelift 2008 Turbo S 3.8

  • Has 5 hp more
  • Has 170 Nm more
  • Is 40 kg lighter
  • Is 0.6 s quicker from 0-100 km/h
  • Uses 2.5 L/100 km less fuel
  • Has 11 hp/t better power-to-weight
  • Has 5 L more trunk volume
  • Emits 58 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI R8 Coupe (42) 5.2 FSI V10
Porsche 911 (997) Turbo S 3.8
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2 vehicles selected

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