Car comparison

AUDI Q8 (4M) 45 TDIvsAUDI Q5 II (FY) · Facelift 2020 40 TDI

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

New comparison

AUDI Q8 (4M)

45 TDI

231 hp2967 ccDieselAWDAutomaticTurbochargedSUV2020-2023
VS

AUDI Q5 II (FY) · Facelift 2020

40 TDI

204 hp1968 ccDieselAWDAutomaticTurbochargedSUV2020-2024

Comparison overview

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

Best choices

AUDI Q8 (4M) 45 TDI

  • Quickest 0-100 km/h
    7.1 s
  • Fastest top speed
    226 km/h
    140 mph
  • Most powerful
    231 hp
    172 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Largest trunk
    605 L
  • Best overall score
    65/100
  • Best performance score
    53/100
  • Best practicality score
    89/100

AUDI Q5 II (FY) Facelift 2020 40 TDI

  • Lightest
    1,805 kg
    3,979 lb
  • Best power-to-weight
    113 hp/t
    84 kW/t
    8.8 kg/hp
  • Lowest combined fuel consumption
    5.4 L/100 km
    43.6 mpg US
    52.3 mpg UK
  • Lowest city consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest highway consumption
    5.0 L/100 km
    47.0 mpg US
    56.5 mpg UK
  • Best estimated range
    1,204 km
    748 mi
  • Best economy score
    92/100

Specification comparison

Specification comparison
ModelAUDIQ8 (4M)45 TDIAUDIQ5 II (FY)Facelift 202040 TDI
Power
231hp172kW
204hp152kW
Torque
500Nm369lb-ft
400Nm295lb-ft
Curb weight
2,160kg4,762lb
1,805kg3,979lb
Gross weight
2,890kg6,371lb
2,510kg5,534lb
Top speed
226 km/h
140 mph
222 km/h
138 mph
To 99% top speed
95.2s99% target: 224 km/h / 139 mph
Calculated
84.2s99% target: 220 km/h / 137 mph
Calculated
0-100 km/h
7.1s
7.6s
0-200 km/h
36.8s
Calculated
37.4s
Calculated
0-60 mph
6.7s
Calculated
7.2s
Calculated
Fuel consumption
7.2L/100 km32.7mpg US39.2mpg UK
5.4L/100 km43.6mpg US52.3mpg UK
Fuel consumption city
8.8L/100 km26.7mpg US32.1mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
5L/100 km47mpg US56.5mpg UK
Quarter mile
15.1s
Calculated
15.5s
Calculated
Power-to-weight
107hp/t80kW/t49hp/1000 lb
Calculated
113hp/t84kW/t51hp/1000 lb
Calculated
Torque-to-weight
231Nm/t155lb-ft/ton
Calculated
222Nm/t148lb-ft/ton
Calculated
Estimated range
1,042km647mi
Calculated
1,204km748mi
Calculated
Displacement
2,967cc181cu in
1,968cc120cu in
Length
4,986mm196in
4,682mm184in
Width
1,995mm79in
1,893mm75in
Height
1,705mm67in
1,662mm65in
Wheelbase
2,995mm118in
2,819mm111in
Front track
1,679mm66in
1,616mm64in
Rear track
1,691mm67in
1,609mm63in
Trunk volume
605L
520L
Max trunk volume
1,755L
1,520L
Doors
5
5
Seats
5
5
Fuel tank
75L
65L

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) 45 TDIAUDI Q5 II (FY) Facelift 2020 40 TDIPowerTorque
  • AUDI Q8 (4M) 45 TDI: Power / Torque
  • AUDI Q5 II (FY) Facelift 2020 40 TDI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIQ8 (4M)45 TDI3,500-5,000 rpm1,500-3,000 rpm5,250 rpm
AUDIQ5 II (FY)Facelift 202040 TDI3,800-4,200 rpm1,750-3,250 rpm4,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIQ8 (4M)45 TDIAUDIQ5 II (FY)Facelift 202040 TDI
Acceleration checkpoints
0-60 mph
0-97 km/h
6.7 s
7.2 s
0-100 km/h
0-62 mph
7.1 s
7.6 s
0-200 km/h
0-124 mph
36.8 s
37.4 s
Top speed
226 km/h
140 mph
222 km/h
138 mph
Drag race simulation
60 ft
18 m
2.3 s
2.5 s
330 ft
101 m
6.4 s
6.7 s
1/8 mile
201 m
9.8 s
10.1 s
1000 ft
305 m
12.7 s
13.0 s
1/4 mile
402 m
15.1 s
15.5 s
Trap speed
1/4 mile
402 m
148 km/h
92 mph
148 km/h
92 mph

Power comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)45 TDI
231 hp
172 kW
AUDIQ5 II (FY)Facelift 202040 TDI
204 hp
152 kW

AUDI Q8 (4M) 45 TDI has 27 hp more than AUDI Q5 II (FY) Facelift 2020 40 TDI.

The biggest power difference is between AUDI Q5 II (FY) Facelift 2020 40 TDI and AUDI Q8 (4M) 45 TDI: 27 hp (20 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)45 TDI
500 Nm
369 lb-ft
AUDIQ5 II (FY)Facelift 202040 TDI
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)45 TDI
2,160 kg
4,762 lb
AUDIQ5 II (FY)Facelift 202040 TDI
1,805 kg
3,979 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)45 TDI
226 km/h
140 mph
AUDIQ5 II (FY)Facelift 202040 TDI
222 km/h
138 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)45 TDI7.1 s
AUDIQ5 II (FY)Facelift 202040 TDI7.6 s

The biggest 0-100 km/h difference is between AUDI Q8 (4M) 45 TDI and AUDI Q5 II (FY) Facelift 2020 40 TDI: 0.5 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)45 TDI
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
AUDIQ5 II (FY)Facelift 202040 TDI
5.4 L/100 km
43.6 mpg US
52.3 mpg UK

The biggest fuel consumption difference is between AUDI Q5 II (FY) Facelift 2020 40 TDI and AUDI Q8 (4M) 45 TDI: 1.8 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)45 TDI
107 hp/t
80 kW/t
9.4 kg/hp
AUDIQ5 II (FY)Facelift 202040 TDI
113 hp/t
84 kW/t
8.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIQ8 (4M)45 TDI
1,042 km
647 mi
AUDIQ5 II (FY)Facelift 202040 TDI
1,204 km
748 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIQ8 (4M)45 TDI
231 hp
172 kW
7.1 s
226 km/h
140 mph
AUDIQ5 II (FY)Facelift 202040 TDI
204 hp
152 kW
7.6 s
222 km/h
138 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)45 TDI
Power
231 hp
172 kW
0-100 km/h7.1 s
Top speed
226 km/h
140 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)Facelift 202040 TDI
Power
204 hp
152 kW
0-100 km/h7.6 s
Top speed
222 km/h
138 mph
Doors/seats
5 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
4,682 mm
184.3 in
Height
1,662 mm
65.4 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)45 TDI
Power
231 hp
172 kW
0-100 km/h7.1 s
Top speed
226 km/h
140 mph
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
AUDIQ5 II (FY)Facelift 202040 TDI
Power
204 hp
152 kW
0-100 km/h7.6 s
Top speed
222 km/h
138 mph
5.4 L/100 km
43.6 mpg US
52.3 mpg UK

AUDI Q8 (4M) 45 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)45 TDI
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
7.1 s
AUDIQ5 II (FY)Facelift 202040 TDI
5.4 L/100 km
43.6 mpg US
52.3 mpg UK
7.6 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)45 TDI
107 hp/t
80 kW/t
9.4 kg/hp
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
AUDIQ5 II (FY)Facelift 202040 TDI
113 hp/t
84 kW/t
8.8 kg/hp
5.4 L/100 km
43.6 mpg US
52.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIQ8 (4M)45 TDIAUDIQ5 II (FY)Facelift 202040 TDI
Power
231 hp
172 kW
204 hp
152 kW
Torque
500 Nm
369 lb-ft
400 Nm
295 lb-ft
Acceleration
7.1 s
7.6 s
Top speed
226 km/h
140 mph
222 km/h
138 mph
Lightness
2,160 kg
4,762 lb
1,805 kg
3,979 lb
Fuel consumption
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
5.4 L/100 km
43.6 mpg US
52.3 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
520 L
18.4 cu ft
Length
4,682 mm
184.3 in
Height
1,662 mm
65.4 in
Range score
1,042 km
647 mi
1,204 km
748 mi
Trunk score
605 L
21.4 cu ft
520 L
18.4 cu ft
Power-to-weight score
107 hp/t
80 kW/t
9.4 kg/hp
113 hp/t
84 kW/t
8.8 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) 45 TDIAUDI Q5 II (FY) Facelift 2020 40 TDI
Consumption7.2 L/100 km32.7 mpg US39.2 mpg UK5.4 L/100 km43.6 mpg US52.3 mpg UK
Cost / 100 km12.60 LC100 km9.45 LC100 km
Cost / 100 mi20.28 LC100 mi15.21 LC100 mi
Annual fuel used1,080 L285 US gal238 UK gal810 L214 US gal178 UK gal
Annual fuel cost1,890 LC/year1,418 LC/year

Head-to-head comparisons

AUDI Q8 (4M) 45 TDI

  • Has 27 hp more
  • Has 100 Nm more
  • Is 0.5 s quicker from 0-100 km/h
  • Has 4 km/h (2 mph) higher top speed
  • Has 85 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Heaviest

AUDI Q5 II (FY) Facelift 2020 40 TDI

  • Is 355 kg lighter
  • Uses 1.8 L/100 km less fuel
  • Has 6 hp/t better power-to-weight
  • Has 162 km (101 mi) more estimated range

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI Q8 (4M) 45 TDI
AUDI Q5 II (FY) 40 TDI
Compare selected cars
2 vehicles selected

Popular comparisons

45 TDI
45 TDI V6
VS
AUDIQ8 (4M)45 TDIvsAUDIQ8 (4M)Facelift 202345 TDI V6
40 TDI
2.0 TDI
VS
AUDIQ5 II (FY)Facelift 202040 TDIvsAUDIQ5 III (GU)2.0 TDI
45 TDI
45 TFSI
VS
AUDIQ8 (4M)45 TDIvsAUDIQ3 II (F3)45 TFSI
40 TDI
40 TDI
VS
AUDIQ5 II (FY)Facelift 202040 TDIvsAUDIQ5 II (FY)40 TDI
45 TDI
40 TFSI
VS
AUDIQ8 (4M)45 TDIvsAUDIQ640 TFSI
40 TDI
2.0 TFSI Hybrid
VS
AUDIQ5 II (FY)Facelift 202040 TDIvsAUDIQ5 I (8R)Facelift 20122.0 TFSI Hybrid
40 TDI
2.0 TFSI
VS
AUDIQ5 II (FY)Facelift 202040 TDIvsAUDIQ5 I (8R)2.0 TFSI
45 TDI
40 TFSI
VS
AUDIQ8 (4M)45 TDIvsAUDIQ5 II (FY)Facelift 202040 TFSI
40 TDI
40 TFSI
VS
AUDIQ5 II (FY)Facelift 202040 TDIvsAUDIQ2Facelift 202040 TFSI
45 TDI
40 TFSI
VS
AUDIQ8 (4M)45 TDIvsAUDIQ240 TFSI
40 TDI
45 TDI V6
VS
AUDIQ5 II (FY)Facelift 202040 TDIvsAUDIQ8 (4M)45 TDI V6
45 TDI
2.0 TFSI
VS
AUDIQ8 (4M)45 TDIvsAUDIQ3 I (8U)Facelift 20142.0 TFSI
AUDI Q8 (4M) 45 TDI vs AUDI Q5 II (FY) · Facelift 2020 40 TDI - car comparison - FastVsFaster