Car comparison

AUDI Q8 (4M) 55 TFSI V6vsPorsche Cayenne III 3.0 V6

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

New comparison

AUDI Q8 (4M)

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedSUV2019-2023
VS

Porsche Cayenne III

3.0 V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedSUV2017-2023

Comparison overview

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

Best choices

AUDI Q8 (4M) 55 TFSI V6

  • Quickest 0-100 km/h
    5.9 s
  • Fastest top speed
    250 km/h
    155 mph
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Lowest CO2 emissions
    207 g/km
  • Best estimated range
    934 km
    580 mi
  • Best overall score
    73/100
  • Best performance score
    65/100
  • Best economy score
    82/100

Porsche Cayenne III 3.0 V6

  • Lightest
    1,985 kg
    4,376 lb
  • Best power-to-weight
    171 hp/t
    128 kW/t
    5.8 kg/hp
  • Lowest city consumption
    11.3 L/100 km
    20.8 mpg US
    25.0 mpg UK
  • Largest trunk
    770 L
  • Best practicality score
    92/100

Specification comparison

Specification comparison
ModelAUDIQ8 (4M)55 TFSI V6PorscheCayenne III3.0 V6
Power
340hp254kW
340hp254kW
Torque
500Nm369lb-ft
450Nm332lb-ft
Curb weight
2,095kg4,619lb
1,985kg4,376lb
Gross weight
2,820kg6,217lb
2,830kg6,239lb
Top speed
250 km/h
155 mph
245 km/h
152 mph
To 99% top speed
80.0s99% target: 248 km/h / 154 mph
Calculated
80.1s99% target: 243 km/h / 151 mph
Calculated
0-100 km/h
5.9s
6.2s
0-200 km/h
23.0s
Calculated
24.7s
Calculated
0-60 mph
5.6s
Calculated
5.9s
Calculated
Fuel consumption
9.1L/100 km25.8mpg US31.0mpg UK
9.2L/100 km25.6mpg US30.7mpg UK
Fuel consumption city
11.6L/100 km20.3mpg US24.4mpg UK
11.3L/100 km20.8mpg US25.0mpg UK
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
8L/100 km29.4mpg US35.3mpg UK
Quarter mile
14.0s
Calculated
14.3s
Calculated
Power-to-weight
162hp/t121kW/t74hp/1000 lb
Calculated
171hp/t128kW/t78hp/1000 lb
Calculated
Torque-to-weight
239Nm/t160lb-ft/ton
Calculated
227Nm/t152lb-ft/ton
Calculated
Estimated range
934km580mi
Calculated
815km507mi
Calculated
Displacement
2,995cc183cu in
2,995cc183cu in
Length
4,986mm196in
4,918mm194in
Width
1,995mm79in
1,983mm78in
Height
1,705mm67in
1,696mm67in
Wheelbase
2,995mm118in
2,895mm114in
Front track
1,679mm66in
-
Rear track
1,691mm67in
-
Trunk volume
605L
770L
Max trunk volume
1,755L
1,710L
Doors
5
5
Seats
5
5
Fuel tank
85L
75L
CO2 emissions
207g/km
209g/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 Q8 (4M) 55 TFSI V6Porsche Cayenne III 3.0 V6PowerTorque
  • AUDI Q8 (4M) 55 TFSI V6: Power / Torque
  • Porsche Cayenne III 3.0 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIQ8 (4M)55 TFSI V65,000-6,400 rpm1,370-4,500 rpm6,650 rpm
PorscheCayenne III3.0 V65,300-6,400 rpm1,340-5,300 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIQ8 (4M)55 TFSI V6PorscheCayenne III3.0 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.6 s
5.9 s
0-100 km/h
0-62 mph
5.9 s
6.2 s
0-200 km/h
0-124 mph
23.0 s
24.7 s
Top speed
250 km/h
155 mph
245 km/h
152 mph
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.1 s
6.2 s
1/8 mile
201 m
9.2 s
9.3 s
1000 ft
305 m
11.8 s
12.0 s
1/4 mile
402 m
14.0 s
14.3 s
Trap speed
1/4 mile
402 m
164 km/h
102 mph
161 km/h
100 mph

Power comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)55 TFSI V6
340 hp
254 kW
PorscheCayenne III3.0 V6
340 hp
254 kW

Torque comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)55 TFSI V6
500 Nm
369 lb-ft
PorscheCayenne III3.0 V6
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)55 TFSI V6
2,095 kg
4,619 lb
PorscheCayenne III3.0 V6
1,985 kg
4,376 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)55 TFSI V6
250 km/h
155 mph
PorscheCayenne III3.0 V6
245 km/h
152 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)55 TFSI V65.9 s
PorscheCayenne III3.0 V66.2 s

The biggest 0-100 km/h difference is between AUDI Q8 (4M) 55 TFSI V6 and Porsche Cayenne III 3.0 V6: 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
VehicleValue
AUDIQ8 (4M)55 TFSI V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
PorscheCayenne III3.0 V6
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)55 TFSI V6
162 hp/t
121 kW/t
6.2 kg/hp
PorscheCayenne III3.0 V6
171 hp/t
128 kW/t
5.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)55 TFSI V6
934 km
580 mi
PorscheCayenne III3.0 V6
815 km
507 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIQ8 (4M)55 TFSI V6
340 hp
254 kW
5.9 s
250 km/h
155 mph
PorscheCayenne III3.0 V6
340 hp
254 kW
6.2 s
245 km/h
152 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
AUDIQ8 (4M)55 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.9 s
Top speed
250 km/h
155 mph
Doors/seats
5 doors
5 seats
Trunk
605 L
21.4 cu ft
Length
4,986 mm
196.3 in
Height
1,705 mm
67.1 in
PorscheCayenne III3.0 V6
Power
340 hp
254 kW
0-100 km/h6.2 s
Top speed
245 km/h
152 mph
Doors/seats
5 doors
5 seats
Trunk
770 L
27.2 cu ft
Length
4,918 mm
193.6 in
Height
1,696 mm
66.8 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
AUDIQ8 (4M)55 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.9 s
Top speed
250 km/h
155 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
PorscheCayenne III3.0 V6
Power
340 hp
254 kW
0-100 km/h6.2 s
Top speed
245 km/h
152 mph
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

AUDI Q8 (4M) 55 TFSI V6 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
AUDIQ8 (4M)55 TFSI V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
5.9 s
PorscheCayenne III3.0 V6
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
6.2 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
AUDIQ8 (4M)55 TFSI V6
162 hp/t
121 kW/t
6.2 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
PorscheCayenne III3.0 V6
171 hp/t
128 kW/t
5.8 kg/hp
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIQ8 (4M)55 TFSI V6PorscheCayenne III3.0 V6
Power
340 hp
254 kW
340 hp
254 kW
Torque
500 Nm
369 lb-ft
450 Nm
332 lb-ft
Acceleration
5.9 s
6.2 s
Top speed
250 km/h
155 mph
245 km/h
152 mph
Lightness
2,095 kg
4,619 lb
1,985 kg
4,376 lb
Fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
605 L
21.4 cu ft
Length
4,986 mm
196.3 in
Height
1,705 mm
67.1 in
Doors/seats
5 doors
5 seats
Trunk
770 L
27.2 cu ft
Length
4,918 mm
193.6 in
Height
1,696 mm
66.8 in
Range score
934 km
580 mi
815 km
507 mi
CO2 score
207 g/km
209 g/km
Trunk score
605 L
21.4 cu ft
770 L
27.2 cu ft
Power-to-weight score
162 hp/t
121 kW/t
6.2 kg/hp
171 hp/t
128 kW/t
5.8 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 Q8 (4M) 55 TFSI V6Porsche Cayenne III 3.0 V6
Consumption9.1 L/100 km25.8 mpg US31 mpg UK9.2 L/100 km25.6 mpg US30.7 mpg UK
Cost / 100 km15.92 LC100 km16.10 LC100 km
Cost / 100 mi25.63 LC100 mi25.91 LC100 mi
Annual fuel used1,365 L361 US gal300 UK gal1,380 L365 US gal304 UK gal
Annual fuel cost2,389 LC/year2,415 LC/year

Head-to-head comparisons

AUDI Q8 (4M) 55 TFSI V6

  • Has 50 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Uses 0.1 L/100 km less fuel
  • Has 119 km (74 mi) more estimated range
  • Emits 2 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Heaviest
  • Smallest trunk

Porsche Cayenne III 3.0 V6

  • Is 110 kg lighter
  • Has 9 hp/t better power-to-weight
  • Has 165 L more trunk volume

Pros

  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI Q8 (4M) 55 TFSI V6
Porsche Cayenne III 3.0 V6
Compare selected cars
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