Car comparison

AUDI Q8 (4M) 55 TFSI V6vsAUDI Q5 II (FY) 50 TDI

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

AUDI Q5 II (FY)

50 TDI

286 hp2967 ccDieselAWDAutomaticTurbochargedSUV2019-2020

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
  • Best power-to-weight
    162 hp/t
    121 kW/t
    6.2 kg/hp
  • Largest trunk
    605 L
  • Best overall score
    73/100
  • Best performance score
    65/100
  • Best practicality score
    89/100

AUDI Q5 II (FY) 50 TDI

  • Highest torque
    620 Nm
    457 lb-ft
  • Lightest
    1,870 kg
    4,123 lb
  • Lowest combined fuel consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest city consumption
    6.9 L/100 km
    34.1 mpg US
    40.9 mpg UK
  • Lowest highway consumption
    5.7 L/100 km
    41.3 mpg US
    49.6 mpg UK
  • Lowest CO2 emissions
    162 g/km
  • Best estimated range
    1,066 km
    662 mi
  • Best economy score
    90/100

Specification comparison

Specification comparison
ModelAUDIQ8 (4M)55 TFSI V6AUDIQ5 II (FY)50 TDI
Power
340hp254kW
286hp213kW
Torque
500Nm369lb-ft
620Nm457lb-ft
Curb weight
2,095kg4,619lb
1,870kg4,123lb
Gross weight
2,820kg6,217lb
2,565kg5,655lb
Top speed
250 km/h
155 mph
237 km/h
147 mph
To 99% top speed
80.0s99% target: 248 km/h / 154 mph
Calculated
67.0s99% target: 235 km/h / 146 mph
Calculated
0-100 km/h
5.9s
5.9s
0-200 km/h
23.0s
Calculated
23.8s
Calculated
0-60 mph
5.6s
Calculated
5.6s
Calculated
Fuel consumption
9.1L/100 km25.8mpg US31.0mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Fuel consumption city
11.6L/100 km20.3mpg US24.4mpg UK
6.9L/100 km34.1mpg US40.9mpg UK
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
5.7L/100 km41.3mpg US49.6mpg UK
Quarter mile
14.0s
Calculated
14.1s
Calculated
Power-to-weight
162hp/t121kW/t74hp/1000 lb
Calculated
153hp/t114kW/t69hp/1000 lb
Calculated
Torque-to-weight
239Nm/t160lb-ft/ton
Calculated
332Nm/t222lb-ft/ton
Calculated
Estimated range
934km580mi
Calculated
1,066km662mi
Calculated
Displacement
2,995cc183cu in
2,967cc181cu in
Length
4,986mm196in
4,663mm184in
Width
1,995mm79in
1,893mm75in
Height
1,705mm67in
1,659mm65in
Wheelbase
2,995mm118in
2,819mm111in
Front track
1,679mm66in
1,616mm64in
Rear track
1,691mm67in
1,609mm63in
Trunk volume
605L
550L
Max trunk volume
1,755L
-
Doors
5
5
Seats
5
5
Fuel tank
85L
65L
CO2 emissions
207g/km
162g/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 V6AUDI Q5 II (FY) 50 TDIPowerTorque
  • AUDI Q8 (4M) 55 TFSI V6: Power / Torque
  • AUDI Q5 II (FY) 50 TDI: 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
AUDIQ5 II (FY)50 TDI3,500-4,000 rpm2,250-3,000 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIQ8 (4M)55 TFSI V6AUDIQ5 II (FY)50 TDI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.6 s
5.6 s
0-100 km/h
0-62 mph
5.9 s
5.9 s
0-200 km/h
0-124 mph
23.0 s
23.8 s
Top speed
250 km/h
155 mph
237 km/h
147 mph
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.1 s
6.1 s
1/8 mile
201 m
9.2 s
9.2 s
1000 ft
305 m
11.8 s
11.8 s
1/4 mile
402 m
14.0 s
14.1 s
Trap speed
1/4 mile
402 m
164 km/h
102 mph
164 km/h
102 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
AUDIQ5 II (FY)50 TDI
286 hp
213 kW

AUDI Q8 (4M) 55 TFSI V6 has 54 hp more than AUDI Q5 II (FY) 50 TDI.

The biggest power difference is between AUDI Q5 II (FY) 50 TDI and AUDI Q8 (4M) 55 TFSI V6: 54 hp (40 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
AUDIQ5 II (FY)50 TDI
620 Nm
457 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
AUDIQ5 II (FY)50 TDI
1,870 kg
4,123 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
AUDIQ5 II (FY)50 TDI
237 km/h
147 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
AUDIQ5 II (FY)50 TDI5.9 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
AUDIQ5 II (FY)50 TDI
6.1 L/100 km
38.6 mpg US
46.3 mpg UK

The biggest fuel consumption difference is between AUDI Q5 II (FY) 50 TDI and AUDI Q8 (4M) 55 TFSI V6: 3.0 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
AUDIQ8 (4M)55 TFSI V6
162 hp/t
121 kW/t
6.2 kg/hp
AUDIQ5 II (FY)50 TDI
153 hp/t
114 kW/t
6.5 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
AUDIQ5 II (FY)50 TDI
1,066 km
662 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
AUDIQ5 II (FY)50 TDI
286 hp
213 kW
5.9 s
237 km/h
147 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
AUDIQ5 II (FY)50 TDI
Power
286 hp
213 kW
0-100 km/h5.9 s
Top speed
237 km/h
147 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,663 mm
183.6 in
Height
1,659 mm
65.3 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
AUDIQ5 II (FY)50 TDI
Power
286 hp
213 kW
0-100 km/h5.9 s
Top speed
237 km/h
147 mph
6.1 L/100 km
38.6 mpg US
46.3 mpg UK

AUDI Q5 II (FY) 50 TDI 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
AUDIQ5 II (FY)50 TDI
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
5.9 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
AUDIQ5 II (FY)50 TDI
153 hp/t
114 kW/t
6.5 kg/hp
6.1 L/100 km
38.6 mpg US
46.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIQ8 (4M)55 TFSI V6AUDIQ5 II (FY)50 TDI
Power
340 hp
254 kW
286 hp
213 kW
Torque
500 Nm
369 lb-ft
620 Nm
457 lb-ft
Acceleration
5.9 s
5.9 s
Top speed
250 km/h
155 mph
237 km/h
147 mph
Lightness
2,095 kg
4,619 lb
1,870 kg
4,123 lb
Fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
6.1 L/100 km
38.6 mpg US
46.3 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
550 L
19.4 cu ft
Length
4,663 mm
183.6 in
Height
1,659 mm
65.3 in
Range score
934 km
580 mi
1,066 km
662 mi
CO2 score
207 g/km
162 g/km
Trunk score
605 L
21.4 cu ft
550 L
19.4 cu ft
Power-to-weight score
162 hp/t
121 kW/t
6.2 kg/hp
153 hp/t
114 kW/t
6.5 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 V6AUDI Q5 II (FY) 50 TDI
Consumption9.1 L/100 km25.8 mpg US31 mpg UK6.1 L/100 km38.6 mpg US46.3 mpg UK
Cost / 100 km15.92 LC100 km10.67 LC100 km
Cost / 100 mi25.63 LC100 mi17.18 LC100 mi
Annual fuel used1,365 L361 US gal300 UK gal915 L242 US gal201 UK gal
Annual fuel cost2,389 LC/year1,601 LC/year

Head-to-head comparisons

AUDI Q8 (4M) 55 TFSI V6

  • Has 54 hp more
  • Has 13 km/h (8 mph) higher top speed
  • Has 9 hp/t better power-to-weight
  • Has 55 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Highest CO2 emissions

AUDI Q5 II (FY) 50 TDI

  • Has 120 Nm more
  • Is 225 kg lighter
  • Uses 3.0 L/100 km less fuel
  • Has 132 km (82 mi) more estimated range
  • Emits 45 g/km less CO2

Pros

  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Lowest power
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI Q8 (4M) 55 TFSI V6
AUDI Q5 II (FY) 50 TDI
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