Car comparison

Porsche 911 (991) Carrera 4 GTS 3.8vsAUDI R8 Coupe (42) · Facelift 2012 4.2 FSI V8

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

New comparison

Porsche 911 (991)

Carrera 4 GTS 3.8

430 hp3800 ccGasolineAWDDual-clutchNaturally aspiratedCoupe2014-2015

AUDI R8 Coupe (42) · Facelift 2012

4.2 FSI V8

430 hp4163 ccGasolineAWDAutomaticNaturally aspiratedCoupe2012-2015

Comparison overview

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

Porsche 911 (991) Carrera 4 GTS 3.8

Quickest 0-100 km/h
4.0 s
Fastest top speed
302 km/h
188 mph
Most powerful
430 hp
321 kW
Highest torque
440 Nm
325 lb-ft
Lightest
1,490 kg
3,285 lb
Best power-to-weight
289 hp/t
215 kW/t
3.5 kg/hp
Lowest combined fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Lowest city consumption
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Lowest highway consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
Lowest CO2 emissions
212 g/km
Best estimated range
747 km
464 mi
Largest trunk
385 L
Best overall score
71/100
Best performance score
81/100
Best economy score
82/100
Best practicality score
50/100

Specification comparison

Specification comparison
Model	Porsche911 (991)Carrera 4 GTS 3.8	AUDIR8 Coupe (42)Facelift 20124.2 FSI V8
Power	430hp321kW	430hp321kW
Torque	440Nm325lb-ft	430Nm317lb-ft
Curb weight	1,490kg3,285lb	1,585kg3,494lb
Gross weight	1,895kg4,178lb	1,885kg4,156lb
Top speed	302 km/h 188 mph	300 km/h 186 mph
To 99% top speed	56.6s99% target: 299 km/h / 186 mph Calculated	66.4s99% target: 297 km/h / 185 mph Calculated
0-100 km/h	4.0s	4.3s
0-200 km/h	11.8s Calculated	13.2s Calculated
0-60 mph	3.8s Calculated	4.1s Calculated
Fuel consumption	9.1L/100 km25.8mpg US31.0mpg UK	12.4L/100 km19mpg US22.8mpg UK
Fuel consumption city	12.5L/100 km18.8mpg US22.6mpg UK	19.3L/100 km12.2mpg US14.6mpg UK
Fuel consumption highway	7.1L/100 km33.1mpg US39.8mpg UK	8.4L/100 km28mpg US33.6mpg UK
Quarter mile	11.8s Calculated	12.2s Calculated
Power-to-weight	289hp/t215kW/t131hp/1000 lb Calculated	271hp/t202kW/t123hp/1000 lb Calculated
Torque-to-weight	295Nm/t198lb-ft/ton Calculated	271Nm/t182lb-ft/ton Calculated
Estimated range	747km464mi Calculated	605km376mi Calculated
Displacement	3,800cc232cu in	4,163cc254cu in
Length	4,509mm178in	4,440mm175in
Width	1,852mm73in	1,904mm75in
Height	1,296mm51in	1,252mm49in
Wheelbase	2,450mm96in	2,650mm104in
Front track	1,538mm61in	1,638mm64in
Rear track	1,560mm61in	1,595mm63in
Trunk volume	385L	100L
Doors	2	2
Seats	4	2
Fuel tank	68L	75L
CO2 emissions	212g/km	289g/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 (991) Carrera 4 GTS 3.8AUDI R8 Coupe (42) Facelift 2012 4.2 FSI V8PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Porsche911 (991)Carrera 4 GTS 3.8	7,500 rpm	5,750 rpm	7,750 rpm
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	7,900 rpm	4,500-6,000 rpm	8,150 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Porsche911 (991)Carrera 4 GTS 3.8	AUDIR8 Coupe (42)Facelift 20124.2 FSI V8
	Acceleration checkpoints
0-60 mph 0-97 km/h	3.8 s	4.1 s
0-100 km/h 0-62 mph	4.0 s	4.3 s
0-200 km/h 0-124 mph	11.8 s	13.2 s
Top speed	302 km/h 188 mph	300 km/h 186 mph
	Drag race simulation
60 ft 18 m	2.1 s	2.1 s
330 ft 101 m	5.3 s	5.4 s
1/8 mile 201 m	7.8 s	8.1 s
1000 ft 305 m	10.0 s	10.3 s
1/4 mile 402 m	11.8 s	12.2 s
Trap speed 1/4 mile 402 m	200 km/h 125 mph	192 km/h 120 mph

Power comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	430 hp 321 kW
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	430 hp 321 kW

Torque comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	440 Nm 325 lb-ft
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	430 Nm 317 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	1,490 kg 3,285 lb
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	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
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	302 km/h 188 mph
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	300 km/h 186 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	4.0 s
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	4.3 s

The biggest 0-100 km/h difference is between Porsche 911 (991) Carrera 4 GTS 3.8 and AUDI R8 Coupe (42) Facelift 2012 4.2 FSI V8: 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
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	9.1 L/100 km 25.8 mpg US 31.0 mpg UK
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	12.4 L/100 km 19.0 mpg US 22.8 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991) Carrera 4 GTS 3.8 and AUDI R8 Coupe (42) Facelift 2012 4.2 FSI V8: 3.3 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	289 hp/t 215 kW/t 3.5 kg/hp
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	271 hp/t 202 kW/t 3.7 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)Carrera 4 GTS 3.8	747 km 464 mi
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	605 km 376 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Porsche911 (991)Carrera 4 GTS 3.8	430 hp 321 kW	4.0 s	302 km/h 188 mph
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	430 hp 321 kW	4.3 s	300 km/h 186 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

Porsche911 (991)Carrera 4 GTS 3.8

Power	430 hp 321 kW
0-100 km/h	4.0 s
Top speed 302 km/h 188 mph

Doors/seats	2 doors 4 seats
Trunk	385 L 13.6 cu ft
Length	4,509 mm 177.5 in
Height	1,296 mm 51.0 in

AUDIR8 Coupe (42)Facelift 20124.2 FSI V8

Power	430 hp 321 kW
0-100 km/h	4.3 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	1,252 mm 49.3 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

Porsche911 (991)Carrera 4 GTS 3.8

Power	430 hp 321 kW
0-100 km/h	4.0 s
Top speed 302 km/h 188 mph

9.1 L/100 km

25.8 mpg US

31.0 mpg UK

AUDIR8 Coupe (42)Facelift 20124.2 FSI V8

Power	430 hp 321 kW
0-100 km/h	4.3 s
Top speed 300 km/h 186 mph

12.4 L/100 km

19.0 mpg US

22.8 mpg UK

Porsche 911 (991) Carrera 4 GTS 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
Porsche911 (991)Carrera 4 GTS 3.8	9.1 L/100 km 25.8 mpg US 31.0 mpg UK	4.0 s
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	12.4 L/100 km 19.0 mpg US 22.8 mpg UK	4.3 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
Porsche911 (991)Carrera 4 GTS 3.8	289 hp/t 215 kW/t 3.5 kg/hp	9.1 L/100 km 25.8 mpg US 31.0 mpg UK
AUDIR8 Coupe (42)Facelift 20124.2 FSI V8	271 hp/t 202 kW/t 3.7 kg/hp	12.4 L/100 km 19.0 mpg US 22.8 mpg UK

Detailed score breakdown

Vehicle

Porsche911 (991)Carrera 4 GTS 3.8

AUDIR8 Coupe (42)Facelift 20124.2 FSI V8

Power

430 hp

321 kW

430 hp

321 kW

Torque

440 Nm

325 lb-ft

430 Nm

317 lb-ft

Acceleration

4.0 s

4.3 s

Top speed

302 km/h

188 mph

300 km/h

186 mph

Lightness

1,490 kg

3,285 lb

1,585 kg

3,494 lb

Fuel consumption

9.1 L/100 km

25.8 mpg US

31.0 mpg UK

12.4 L/100 km

19.0 mpg US

22.8 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	385 L 13.6 cu ft
Length	4,509 mm 177.5 in
Height	1,296 mm 51.0 in

Doors/seats	2 doors 2 seats
Trunk	100 L 3.5 cu ft
Length	4,440 mm 174.8 in
Height	1,252 mm 49.3 in

Range score

747 km

464 mi

605 km

376 mi

CO2 score

212 g/km

289 g/km

Trunk score

385 L

13.6 cu ft

100 L

3.5 cu ft

Power-to-weight score

289 hp/t

215 kW/t

3.5 kg/hp

271 hp/t

202 kW/t

3.7 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Porsche 911 (991) Carrera 4 GTS 3.8	AUDI R8 Coupe (42) Facelift 2012 4.2 FSI V8
Consumption	9.1 L/100 km25.8 mpg US31 mpg UK	12.4 L/100 km19 mpg US22.8 mpg UK
Cost / 100 km	15.92 LC100 km	21.70 LC100 km
Cost / 100 mi	25.63 LC100 mi	34.92 LC100 mi
Annual fuel used	1,365 L361 US gal300 UK gal	1,860 L491 US gal409 UK gal
Annual fuel cost	2,389 LC/year	3,255 LC/year