Car comparison

AUDI Q5 II (FY) 45 TFSIvsAUDI Q8 (4M) 45 TDI

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

New comparison

AUDI Q5 II (FY)

45 TFSI

245 hp1984 ccGasolineAWDAutomaticTurbochargedSUV2019-2020
VS

AUDI Q8 (4M)

45 TDI

231 hp2967 ccDieselAWDAutomaticTurbochargedSUV2020-2023

Comparison overview

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

Best choices

AUDI Q5 II (FY) 45 TFSI

  • Quickest 0-100 km/h
    6.4 s
  • Fastest top speed
    237 km/h
    147 mph
  • Most powerful
    245 hp
    183 kW
  • Lightest
    1,750 kg
    3,858 lb
  • Best power-to-weight
    140 hp/t
    104 kW/t
    7.1 kg/hp
  • Best overall score
    66/100
  • Best performance score
    57/100
  • Best economy score
    87/100

AUDI Q8 (4M) 45 TDI

  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest city consumption
    8.8 L/100 km
    26.7 mpg US
    32.1 mpg UK
  • Lowest highway consumption
    6.3 L/100 km
    37.3 mpg US
    44.8 mpg UK
  • Best estimated range
    1,042 km
    647 mi
  • Largest trunk
    605 L
  • Best practicality score
    89/100

Specification comparison

Specification comparison
ModelAUDIQ5 II (FY)45 TFSIAUDIQ8 (4M)45 TDI
Power
245hp183kW
231hp172kW
Torque
370Nm273lb-ft
500Nm369lb-ft
Curb weight
1,750kg3,858lb
2,160kg4,762lb
Gross weight
2,435kg5,368lb
2,890kg6,371lb
Top speed
237 km/h
147 mph
226 km/h
140 mph
To 99% top speed
74.1s99% target: 235 km/h / 146 mph
Calculated
95.4s99% target: 224 km/h / 139 mph
Calculated
0-100 km/h
6.4s
7.1s
0-200 km/h
26.1s
Calculated
36.9s
Calculated
0-60 mph
6.1s
Calculated
6.7s
Calculated
Fuel consumption
7.5L/100 km31.4mpg US37.7mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Fuel consumption city
9.5L/100 km24.8mpg US29.7mpg UK
8.8L/100 km26.7mpg US32.1mpg UK
Fuel consumption highway
6.4L/100 km36.8mpg US44.1mpg UK
6.3L/100 km37.3mpg US44.8mpg UK
Quarter mile
14.5s
Calculated
15.1s
Calculated
Power-to-weight
140hp/t104kW/t64hp/1000 lb
Calculated
107hp/t80kW/t49hp/1000 lb
Calculated
Torque-to-weight
211Nm/t141lb-ft/ton
Calculated
231Nm/t155lb-ft/ton
Calculated
Estimated range
933km580mi
Calculated
1,042km647mi
Calculated
Displacement
1,984cc121cu in
2,967cc181cu in
Length
4,663mm184in
4,986mm196in
Width
1,893mm75in
1,995mm79in
Height
1,659mm65in
1,705mm67in
Wheelbase
2,819mm111in
2,995mm118in
Front track
1,616mm64in
1,679mm66in
Rear track
1,609mm63in
1,691mm67in
Trunk volume
550L
605L
Max trunk volume-
1,755L
Doors
5
5
Seats
5
5
Fuel tank
70L
75L
CO2 emissions
172g/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 Q5 II (FY) 45 TFSIAUDI Q8 (4M) 45 TDIPowerTorque
  • AUDI Q5 II (FY) 45 TFSI: Power / Torque
  • AUDI Q8 (4M) 45 TDI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIQ5 II (FY)45 TFSI5,000-6,500 rpm1,600-4,300 rpm6,750 rpm
AUDIQ8 (4M)45 TDI3,500-5,000 rpm1,500-3,000 rpm5,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIQ5 II (FY)45 TFSIAUDIQ8 (4M)45 TDI
Acceleration checkpoints
0-60 mph
0-97 km/h
6.1 s
6.7 s
0-100 km/h
0-62 mph
6.4 s
7.1 s
0-200 km/h
0-124 mph
26.1 s
36.9 s
Top speed
237 km/h
147 mph
226 km/h
140 mph
Drag race simulation
60 ft
18 m
2.4 s
2.3 s
330 ft
101 m
6.3 s
6.4 s
1/8 mile
201 m
9.5 s
9.8 s
1000 ft
305 m
12.2 s
12.7 s
1/4 mile
402 m
14.5 s
15.1 s
Trap speed
1/4 mile
402 m
159 km/h
99 mph
148 km/h
92 mph

Power comparison

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

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI
245 hp
183 kW
AUDIQ8 (4M)45 TDI
231 hp
172 kW

AUDI Q5 II (FY) 45 TFSI has 14 hp more than AUDI Q8 (4M) 45 TDI.

The biggest power difference is between AUDI Q8 (4M) 45 TDI and AUDI Q5 II (FY) 45 TFSI: 14 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI
370 Nm
273 lb-ft
AUDIQ8 (4M)45 TDI
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI
1,750 kg
3,858 lb
AUDIQ8 (4M)45 TDI
2,160 kg
4,762 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI
237 km/h
147 mph
AUDIQ8 (4M)45 TDI
226 km/h
140 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI6.4 s
AUDIQ8 (4M)45 TDI7.1 s

The biggest 0-100 km/h difference is between AUDI Q5 II (FY) 45 TFSI and AUDI Q8 (4M) 45 TDI: 0.7 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
AUDIQ8 (4M)45 TDI
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI
140 hp/t
104 kW/t
7.1 kg/hp
AUDIQ8 (4M)45 TDI
107 hp/t
80 kW/t
9.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIQ5 II (FY)45 TFSI
933 km
580 mi
AUDIQ8 (4M)45 TDI
1,042 km
647 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIQ5 II (FY)45 TFSI
245 hp
183 kW
6.4 s
237 km/h
147 mph
AUDIQ8 (4M)45 TDI
231 hp
172 kW
7.1 s
226 km/h
140 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
AUDIQ5 II (FY)45 TFSI
Power
245 hp
183 kW
0-100 km/h6.4 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
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

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
AUDIQ5 II (FY)45 TFSI
Power
245 hp
183 kW
0-100 km/h6.4 s
Top speed
237 km/h
147 mph
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
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

AUDI Q5 II (FY) 45 TFSI 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
AUDIQ5 II (FY)45 TFSI
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
6.4 s
AUDIQ8 (4M)45 TDI
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
7.1 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
AUDIQ5 II (FY)45 TFSI
140 hp/t
104 kW/t
7.1 kg/hp
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
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

Detailed score breakdown

Detailed score breakdown
VehicleAUDIQ5 II (FY)45 TFSIAUDIQ8 (4M)45 TDI
Power
245 hp
183 kW
231 hp
172 kW
Torque
370 Nm
273 lb-ft
500 Nm
369 lb-ft
Acceleration
6.4 s
7.1 s
Top speed
237 km/h
147 mph
226 km/h
140 mph
Lightness
1,750 kg
3,858 lb
2,160 kg
4,762 lb
Fuel consumption
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
Practicality
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
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
Range score
933 km
580 mi
1,042 km
647 mi
CO2 score
172 g/km
-
Trunk score
550 L
19.4 cu ft
605 L
21.4 cu ft
Power-to-weight score
140 hp/t
104 kW/t
7.1 kg/hp
107 hp/t
80 kW/t
9.4 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 Q5 II (FY) 45 TFSIAUDI Q8 (4M) 45 TDI
Consumption7.5 L/100 km31.4 mpg US37.7 mpg UK7.2 L/100 km32.7 mpg US39.2 mpg UK
Cost / 100 km13.13 LC100 km12.60 LC100 km
Cost / 100 mi21.12 LC100 mi20.28 LC100 mi
Annual fuel used1,125 L297 US gal247 UK gal1,080 L285 US gal238 UK gal
Annual fuel cost1,969 LC/year1,890 LC/year

Head-to-head comparisons

AUDI Q5 II (FY) 45 TFSI

  • Has 14 hp more
  • Is 410 kg lighter
  • Is 0.7 s quicker from 0-100 km/h
  • Has 11 km/h (7 mph) higher top speed
  • Has 33 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

AUDI Q8 (4M) 45 TDI

  • Has 130 Nm more
  • Uses 0.3 L/100 km less fuel
  • Has 108 km (67 mi) more estimated range
  • Has 55 L more trunk volume

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI Q5 II (FY) 45 TFSI
AUDI Q8 (4M) 45 TDI
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