Car comparison

Porsche 911 (991 II) Carrera 4 GTS 3.0vsCadillac ATS Coupe V 3.6 V6

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

New comparison

Porsche 911 (991 II)

Carrera 4 GTS 3.0

450 hp2981 ccGasolineAWDManualTwin-turboCoupe2017-2018
VS

Cadillac ATS Coupe

V 3.6 V6

471 hp3564 ccGasolineRWDAutomaticTwin-turboCoupe2016-2019

Comparison overview

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

Best choices

Porsche 911 (991 II) Carrera 4 GTS 3.0

  • Quickest 0-100 km/h
    4.0 s
  • Fastest top speed
    310 km/h
    193 mph
  • Lightest
    1,495 kg
    3,296 lb
  • Best power-to-weight
    301 hp/t
    224 kW/t
    3.3 kg/hp
  • Lowest combined fuel consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Lowest city consumption
    13.0 L/100 km
    18.1 mpg US
    21.7 mpg UK
  • Lowest highway consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Best estimated range
    705 km
    438 mi
  • Largest trunk
    385 L
  • Best overall score
    74/100
  • Best performance score
    85/100
  • Best economy score
    81/100
  • Best practicality score
    51/100

Specification comparison

Specification comparison
ModelPorsche911 (991 II)Carrera 4 GTS 3.0CadillacATS CoupeV 3.6 V6
Power
450hp336kW
471hp351kW
Torque
550Nm406lb-ft
603Nm445lb-ft
Curb weight
1,495kg3,296lb
1,725kg3,803lb
Gross weight
1,950kg4,299lb
-
Top speed
310 km/h
193 mph
298 km/h
185 mph
To 99% top speed
87.8s99% target: 307 km/h / 191 mph
Calculated
64.3s99% target: 295 km/h / 183 mph
Calculated
0-100 km/h
4.0s
4.2s
0-200 km/h
13.6s
13.0s
Calculated
0-60 mph
3.8s
Calculated
4.0s
Calculated
Fuel consumption
9.5L/100 km24.8mpg US29.7mpg UK
12.4L/100 km19mpg US22.8mpg UK
Fuel consumption city
13L/100 km18.1mpg US21.7mpg UK
14.7L/100 km16mpg US19.2mpg UK
Fuel consumption highway
7.4L/100 km31.8mpg US38.2mpg UK
9.8L/100 km24mpg US28.8mpg UK
Quarter mile
12.1s
Calculated
12.1s
Calculated
Power-to-weight
301hp/t224kW/t137hp/1000 lb
Calculated
273hp/t204kW/t124hp/1000 lb
Calculated
Torque-to-weight
368Nm/t246lb-ft/ton
Calculated
350Nm/t234lb-ft/ton
Calculated
Estimated range
705km438mi
Calculated
488km303mi
Calculated
Displacement
2,981cc182cu in
3,564cc217cu in
Length
4,528mm178in
4,691mm185in
Width
1,852mm73in
1,841mm72in
Height
1,284mm51in
1,384mm54in
Wheelbase
2,450mm96in
2,775mm109in
Front track
1,541mm61in
1,538mm61in
Rear track
1,544mm61in
1,559mm61in
Trunk volume-
295L
Max trunk volume
385L
-
Doors
2
2
Seats
4
4
Fuel tank
67L
61L
CO2 emissions
216g/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 II) Carrera 4 GTS 3.0Cadillac ATS Coupe V 3.6 V6PowerTorque
  • Porsche 911 (991 II) Carrera 4 GTS 3.0: Power / Torque
  • Cadillac ATS Coupe V 3.6 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (991 II)Carrera 4 GTS 3.06,500 rpm2,150-5,000 rpm7,500 rpm
CadillacATS CoupeV 3.6 V65,850 rpm3,500 rpm6,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (991 II)Carrera 4 GTS 3.0CadillacATS CoupeV 3.6 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
3.8 s
4.0 s
0-100 km/h
0-62 mph
4.0 s
4.2 s
0-200 km/h
0-124 mph
13.6 s
13.0 s
Top speed
310 km/h
193 mph
298 km/h
185 mph
Drag race simulation
60 ft
18 m
1.9 s
2.1 s
330 ft
101 m
5.2 s
5.3 s
1/8 mile
201 m
7.8 s
8.0 s
1000 ft
305 m
10.1 s
10.2 s
1/4 mile
402 m
12.1 s
12.1 s
Trap speed
1/4 mile
402 m
189 km/h
118 mph
194 km/h
120 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4 GTS 3.0
450 hp
336 kW
CadillacATS CoupeV 3.6 V6
471 hp
351 kW

Cadillac ATS Coupe V 3.6 V6 has 21 hp more than Porsche 911 (991 II) Carrera 4 GTS 3.0.

The biggest power difference is between Porsche 911 (991 II) Carrera 4 GTS 3.0 and Cadillac ATS Coupe V 3.6 V6: 21 hp (16 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4 GTS 3.0
550 Nm
406 lb-ft
CadillacATS CoupeV 3.6 V6
603 Nm
445 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4 GTS 3.0
1,495 kg
3,296 lb
CadillacATS CoupeV 3.6 V6
1,725 kg
3,803 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 (991 II)Carrera 4 GTS 3.0
310 km/h
193 mph
CadillacATS CoupeV 3.6 V6
298 km/h
185 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4 GTS 3.04.0 s
CadillacATS CoupeV 3.6 V64.2 s

Although Cadillac ATS Coupe V 3.6 V6 has more power, Porsche 911 (991 II) Carrera 4 GTS 3.0 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 911 (991 II) Carrera 4 GTS 3.0 and Cadillac ATS Coupe V 3.6 V6: 0.2 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 (991 II)Carrera 4 GTS 3.0
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
CadillacATS CoupeV 3.6 V6
12.4 L/100 km
19.0 mpg US
22.8 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991 II) Carrera 4 GTS 3.0 and Cadillac ATS Coupe V 3.6 V6: 2.9 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 (991 II)Carrera 4 GTS 3.0
301 hp/t
224 kW/t
3.3 kg/hp
CadillacATS CoupeV 3.6 V6
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
Porsche911 (991 II)Carrera 4 GTS 3.0
705 km
438 mi
CadillacATS CoupeV 3.6 V6
488 km
303 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (991 II)Carrera 4 GTS 3.0
450 hp
336 kW
4.0 s
310 km/h
193 mph
CadillacATS CoupeV 3.6 V6
471 hp
351 kW
4.2 s
298 km/h
185 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 (991 II)Carrera 4 GTS 3.0
Power
450 hp
336 kW
0-100 km/h4.0 s
Top speed
310 km/h
193 mph
Doors/seats
2 doors
4 seats
Trunk
385 L
13.6 cu ft
Length
4,528 mm
178.3 in
Height
1,284 mm
50.6 in
CadillacATS CoupeV 3.6 V6
Power
471 hp
351 kW
0-100 km/h4.2 s
Top speed
298 km/h
185 mph
Doors/seats
2 doors
4 seats
Trunk
295 L
10.4 cu ft
Length
4,691 mm
184.7 in
Height
1,384 mm
54.5 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 (991 II)Carrera 4 GTS 3.0
Power
450 hp
336 kW
0-100 km/h4.0 s
Top speed
310 km/h
193 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
CadillacATS CoupeV 3.6 V6
Power
471 hp
351 kW
0-100 km/h4.2 s
Top speed
298 km/h
185 mph
12.4 L/100 km
19.0 mpg US
22.8 mpg UK

Porsche 911 (991 II) Carrera 4 GTS 3.0 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 (991 II)Carrera 4 GTS 3.0
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
4.0 s
CadillacATS CoupeV 3.6 V6
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
4.2 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 (991 II)Carrera 4 GTS 3.0
301 hp/t
224 kW/t
3.3 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
CadillacATS CoupeV 3.6 V6
273 hp/t
204 kW/t
3.7 kg/hp
12.4 L/100 km
19.0 mpg US
22.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991 II)Carrera 4 GTS 3.0CadillacATS CoupeV 3.6 V6
Power
450 hp
336 kW
471 hp
351 kW
Torque
550 Nm
406 lb-ft
603 Nm
445 lb-ft
Acceleration
4.0 s
4.2 s
Top speed
310 km/h
193 mph
298 km/h
185 mph
Lightness
1,495 kg
3,296 lb
1,725 kg
3,803 lb
Fuel consumption
9.5 L/100 km
24.8 mpg US
29.7 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
4,528 mm
178.3 in
Height
1,284 mm
50.6 in
Doors/seats
2 doors
4 seats
Trunk
295 L
10.4 cu ft
Length
4,691 mm
184.7 in
Height
1,384 mm
54.5 in
Range score
705 km
438 mi
488 km
303 mi
CO2 score
216 g/km
-
Trunk score
385 L
13.6 cu ft
295 L
10.4 cu ft
Power-to-weight score
301 hp/t
224 kW/t
3.3 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
VehiclePorsche 911 (991 II) Carrera 4 GTS 3.0Cadillac ATS Coupe V 3.6 V6
Consumption9.5 L/100 km24.8 mpg US29.7 mpg UK12.4 L/100 km19 mpg US22.8 mpg UK
Cost / 100 km16.63 LC100 km21.70 LC100 km
Cost / 100 mi26.76 LC100 mi34.92 LC100 mi
Annual fuel used1,425 L376 US gal313 UK gal1,860 L491 US gal409 UK gal
Annual fuel cost2,494 LC/year3,255 LC/year

Head-to-head comparisons

Porsche 911 (991 II) Carrera 4 GTS 3.0

  • Is 230 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 12 km/h (7 mph) higher top speed
  • Uses 2.9 L/100 km less fuel
  • Has 28 hp/t better power-to-weight
  • Has 217 km (135 mi) more estimated range
  • Has 90 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power

Cadillac ATS Coupe V 3.6 V6

  • Has 21 hp more
  • Has 53 Nm more

Pros

  • Most powerful
  • Highest torque

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991 II) Carrera 4 GTS 3.0
Cadillac ATS Coupe V 3.6 V6
Compare selected cars
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