Car comparison

AUDI A6 Sedan (C8) · Facelift 2023 45 TDI V6vsAUDI A6 (4B/C5) 2.7 T V6

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

New comparison

AUDI A6 Sedan (C8) · Facelift 2023

45 TDI V6

245 hp2967 ccDieselAWDAutomaticTurbochargedSedan2023-2025
VS

AUDI A6 (4B/C5)

2.7 T V6

250 hp2671 ccGasolineAWDAutomaticTurbochargedSedan2000-2001

Comparison overview

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

Best choices

AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6

  • Quickest 0-100 km/h
    6.2 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    6.9 L/100 km
    34.1 mpg US
    40.9 mpg UK
  • Best estimated range
    913 km
    567 mi
  • Largest trunk
    520 L
  • Best overall score
    66/100
  • Best performance score
    62/100
  • Best economy score
    88/100

AUDI A6 (4B/C5) 2.7 T V6

  • Most powerful
    250 hp
    186 kW
  • Lightest
    1,705 kg
    3,759 lb
  • Best power-to-weight
    147 hp/t
    109 kW/t
    6.8 kg/hp
  • Best practicality score
    78/100

Specification comparison

Specification comparison
ModelAUDIA6 Sedan (C8)Facelift 202345 TDI V6AUDIA6 (4B/C5)2.7 T V6
Power
245hp183kW
250hp186kW
Torque
500Nm369lb-ft
350Nm258lb-ft
Curb weight
1,825kg4,023lb
1,705kg3,759lb
Gross weight
2,510kg5,534lb
2,255kg4,971lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
245 km/h
152 mph
To 99% top speed
66.2s99% target: 257 km/h / 160 mph
Calculated
74.2s99% target: 243 km/h / 151 mph
Calculated
0-100 km/h
6.2s
7.4s
0-200 km/h
19.9s
Calculated
25.7s
Calculated
0-60 mph
5.9s
Calculated
7.1s
Calculated
Fuel consumption
6.9L/100 km34.1mpg US40.9mpg UK
12.2L/100 km19.3mpg US23.2mpg UK
Fuel consumption city-
18.1L/100 km13mpg US15.6mpg UK
Fuel consumption highway-
8.8L/100 km26.7mpg US32.1mpg UK
Quarter mile
14.2s
Calculated
15.3s
Calculated
Power-to-weight
134hp/t100kW/t61hp/1000 lb
Calculated
147hp/t109kW/t67hp/1000 lb
Calculated
Torque-to-weight
274Nm/t183lb-ft/ton
Calculated
205Nm/t137lb-ft/ton
Calculated
Estimated range
913km567mi
Calculated
574km357mi
Calculated
Displacement
2,967cc181cu in
2,671cc163cu in
Length
4,939mm194in
4,796mm189in
Width
1,886mm74in
1,810mm71in
Height
1,457mm57in
1,453mm57in
Wheelbase
2,924mm115in
2,759mm109in
Front track
1,630mm64in
1,540mm61in
Rear track
1,617mm64in
1,569mm62in
Trunk volume
520L
-
Max trunk volume-
434L
Doors
4
4
Seats
5
5
Fuel tank
63L
70L
CO2 emissions-
293g/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 A6 Sedan (C8) Facelift 2023 45 TDI V6AUDI A6 (4B/C5) 2.7 T V6PowerTorque
  • AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6: Power / Torque
  • AUDI A6 (4B/C5) 2.7 T V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Sedan (C8)Facelift 202345 TDI V63,500-4,750 rpm1,500-3,250 rpm5,000 rpm
AUDIA6 (4B/C5)2.7 T V65,800 rpm1,800-4,500 rpm6,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 Sedan (C8)Facelift 202345 TDI V6AUDIA6 (4B/C5)2.7 T V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.9 s
7.1 s
0-100 km/h
0-62 mph
6.2 s
7.4 s
0-200 km/h
0-124 mph
19.9 s
25.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
245 km/h
152 mph
Drag race simulation
60 ft
18 m
2.5 s
2.7 s
330 ft
101 m
6.4 s
6.9 s
1/8 mile
201 m
9.4 s
10.2 s
1000 ft
305 m
12.0 s
12.9 s
1/4 mile
402 m
14.2 s
15.3 s
Trap speed
1/4 mile
402 m
170 km/h
106 mph
158 km/h
98 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
245 hp
183 kW
AUDIA6 (4B/C5)2.7 T V6
250 hp
186 kW

AUDI A6 (4B/C5) 2.7 T V6 has 5 hp more than AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6.

The biggest power difference is between AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6 and AUDI A6 (4B/C5) 2.7 T V6: 5 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
500 Nm
369 lb-ft
AUDIA6 (4B/C5)2.7 T V6
350 Nm
258 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
1,825 kg
4,023 lb
AUDIA6 (4B/C5)2.7 T V6
1,705 kg
3,759 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 (4B/C5)2.7 T 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
AUDIA6 Sedan (C8)Facelift 202345 TDI V66.2 s
AUDIA6 (4B/C5)2.7 T V67.4 s

Although AUDI A6 (4B/C5) 2.7 T V6 has more power, AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6 and AUDI A6 (4B/C5) 2.7 T V6: 1.2 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
AUDIA6 (4B/C5)2.7 T V6
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

The biggest fuel consumption difference is between AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6 and AUDI A6 (4B/C5) 2.7 T V6: 5.3 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
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
134 hp/t
100 kW/t
7.4 kg/hp
AUDIA6 (4B/C5)2.7 T V6
147 hp/t
109 kW/t
6.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
913 km
567 mi
AUDIA6 (4B/C5)2.7 T V6
574 km
357 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
245 hp
183 kW
6.2 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 (4B/C5)2.7 T V6
250 hp
186 kW
7.4 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
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
Power
245 hp
183 kW
0-100 km/h6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
4,939 mm
194.4 in
Height
1,457 mm
57.4 in
AUDIA6 (4B/C5)2.7 T V6
Power
250 hp
186 kW
0-100 km/h7.4 s
Top speed
245 km/h
152 mph
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,796 mm
188.8 in
Height
1,453 mm
57.2 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
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
Power
245 hp
183 kW
0-100 km/h6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
AUDIA6 (4B/C5)2.7 T V6
Power
250 hp
186 kW
0-100 km/h7.4 s
Top speed
245 km/h
152 mph
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

AUDI A6 Sedan (C8) Facelift 2023 45 TDI 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
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
6.2 s
AUDIA6 (4B/C5)2.7 T V6
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
7.4 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
AUDIA6 Sedan (C8)Facelift 202345 TDI V6
134 hp/t
100 kW/t
7.4 kg/hp
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
AUDIA6 (4B/C5)2.7 T V6
147 hp/t
109 kW/t
6.8 kg/hp
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Sedan (C8)Facelift 202345 TDI V6AUDIA6 (4B/C5)2.7 T V6
Power
245 hp
183 kW
250 hp
186 kW
Torque
500 Nm
369 lb-ft
350 Nm
258 lb-ft
Acceleration
6.2 s
7.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
245 km/h
152 mph
Lightness
1,825 kg
4,023 lb
1,705 kg
3,759 lb
Fuel consumption
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
4,939 mm
194.4 in
Height
1,457 mm
57.4 in
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,796 mm
188.8 in
Height
1,453 mm
57.2 in
Range score
913 km
567 mi
574 km
357 mi
CO2 score
-
293 g/km
Trunk score
520 L
18.4 cu ft
434 L
15.3 cu ft
Power-to-weight score
134 hp/t
100 kW/t
7.4 kg/hp
147 hp/t
109 kW/t
6.8 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 A6 Sedan (C8) Facelift 2023 45 TDI V6AUDI A6 (4B/C5) 2.7 T V6
Consumption6.9 L/100 km34.1 mpg US40.9 mpg UK12.2 L/100 km19.3 mpg US23.2 mpg UK
Cost / 100 km12.08 LC100 km21.35 LC100 km
Cost / 100 mi19.43 LC100 mi34.36 LC100 mi
Annual fuel used1,035 L273 US gal228 UK gal1,830 L483 US gal403 UK gal
Annual fuel cost1,811 LC/year3,203 LC/year

Head-to-head comparisons

AUDI A6 Sedan (C8) Facelift 2023 45 TDI V6

  • Has 150 Nm more
  • Is 1.2 s quicker from 0-100 km/h
  • Has 15 km/h (9 mph) higher top speed
  • Uses 5.3 L/100 km less fuel
  • Has 339 km (211 mi) more estimated range
  • Has 86 L more trunk volume

Pros

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

Cons

  • Lowest power
  • Heaviest

AUDI A6 (4B/C5) 2.7 T V6

  • Has 5 hp more
  • Is 120 kg lighter
  • Has 12 hp/t better power-to-weight

Pros

  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 Sedan (C8) 45 TDI V6
AUDI A6 (4B/C5) 2.7 T V6
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2 vehicles selected

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AUDI A6 Sedan (C8) · Facelift 2023 45 TDI V6 vs AUDI A6 (4B/C5) 2.7 T V6 - car comparison - FastVsFaster