Car comparison

AUDI A6 Sedan (C8) · Facelift 2023 45 TFSIvsAUDI A6 (4B/C5) 4.2 V8 40V

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

New comparison

AUDI A6 Sedan (C8) · Facelift 2023

45 TFSI

265 hp1984 ccGasolineFWDAutomaticTurbochargedSedan2023-2025
VS

AUDI A6 (4B/C5)

4.2 V8 40V

300 hp4172 ccGasolineAWDAutomaticNaturally aspiratedSedan1999-2001

Comparison overview

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

Best choices

AUDI A6 Sedan (C8) Facelift 2023 45 TFSI

  • Quickest 0-100 km/h
    6.7 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,645 kg
    3,627 lb
  • Lowest combined fuel consumption
    7.9 L/100 km
    29.8 mpg US
    35.8 mpg UK
  • Best estimated range
    797 km
    496 mi
  • Largest trunk
    530 L
  • Best economy score
    86/100

AUDI A6 (4B/C5) 4.2 V8 40V

  • Most powerful
    300 hp
    224 kW
  • Highest torque
    400 Nm
    295 lb-ft
  • Best power-to-weight
    173 hp/t
    129 kW/t
    5.8 kg/hp
  • Best overall score
    66/100
  • Best performance score
    61/100
  • Best practicality score
    78/100

Specification comparison

Specification comparison
ModelAUDIA6 Sedan (C8)Facelift 202345 TFSIAUDIA6 (4B/C5)4.2 V8 40V
Power
265hp198kW
300hp224kW
Torque
370Nm273lb-ft
400Nm295lb-ft
Curb weight
1,645kg3,627lb
1,730kg3,814lb
Gross weight
2,240kg4,938lb
2,310kg5,093lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
67.9s99% target: 257 km/h / 160 mph
Calculated
72.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
6.7s
6.9s
0-200 km/h
20.9s
Calculated
22.0s
Calculated
0-60 mph
6.4s
Calculated
6.6s
Calculated
Fuel consumption
7.9L/100 km29.8mpg US35.8mpg UK
13L/100 km18.1mpg US21.7mpg UK
Fuel consumption city-
19L/100 km12.4mpg US14.9mpg UK
Fuel consumption highway-
9.5L/100 km24.8mpg US29.7mpg UK
Quarter mile
14.6s
Calculated
14.8s
Calculated
Power-to-weight
161hp/t120kW/t73hp/1000 lb
Calculated
173hp/t129kW/t79hp/1000 lb
Calculated
Torque-to-weight
225Nm/t150lb-ft/ton
Calculated
231Nm/t155lb-ft/ton
Calculated
Estimated range
797km496mi
Calculated
631km392mi
Calculated
Displacement
1,984cc121cu in
4,172cc255cu in
Length
4,939mm194in
4,833mm190in
Width
1,886mm74in
1,850mm73in
Height
1,457mm57in
1,453mm57in
Wheelbase
2,924mm115in
2,759mm109in
Front track
1,630mm64in
1,578mm62in
Rear track
1,617mm64in
1,590mm63in
Trunk volume
530L
-
Max trunk volume
995L
434L
Doors
4
4
Seats
5
5
Fuel tank
63L
82L
CO2 emissions-
312g/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 TFSIAUDI A6 (4B/C5) 4.2 V8 40VPowerTorque
  • AUDI A6 Sedan (C8) Facelift 2023 45 TFSI: Power / Torque
  • AUDI A6 (4B/C5) 4.2 V8 40V: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Sedan (C8)Facelift 202345 TFSI5,250-6,500 rpm1,600-4,500 rpm6,750 rpm
AUDIA6 (4B/C5)4.2 V8 40V6,200 rpm3,000-4,000 rpm6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 Sedan (C8)Facelift 202345 TFSIAUDIA6 (4B/C5)4.2 V8 40V
Acceleration checkpoints
0-60 mph
0-97 km/h
6.4 s
6.6 s
0-100 km/h
0-62 mph
6.7 s
6.9 s
0-200 km/h
0-124 mph
20.9 s
22.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.7 s
2.7 s
330 ft
101 m
6.7 s
6.7 s
1/8 mile
201 m
9.8 s
9.9 s
1000 ft
305 m
12.4 s
12.6 s
1/4 mile
402 m
14.6 s
14.8 s
Trap speed
1/4 mile
402 m
168 km/h
104 mph
165 km/h
102 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TFSI
265 hp
198 kW
AUDIA6 (4B/C5)4.2 V8 40V
300 hp
224 kW

AUDI A6 (4B/C5) 4.2 V8 40V has 35 hp more than AUDI A6 Sedan (C8) Facelift 2023 45 TFSI.

The biggest power difference is between AUDI A6 Sedan (C8) Facelift 2023 45 TFSI and AUDI A6 (4B/C5) 4.2 V8 40V: 35 hp (26 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202345 TFSI
370 Nm
273 lb-ft
AUDIA6 (4B/C5)4.2 V8 40V
400 Nm
295 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 TFSI
1,645 kg
3,627 lb
AUDIA6 (4B/C5)4.2 V8 40V
1,730 kg
3,814 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 TFSI
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 (4B/C5)4.2 V8 40V
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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 TFSI6.7 s
AUDIA6 (4B/C5)4.2 V8 40V6.9 s

Although AUDI A6 (4B/C5) 4.2 V8 40V has more power, AUDI A6 Sedan (C8) Facelift 2023 45 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 Sedan (C8) Facelift 2023 45 TFSI and AUDI A6 (4B/C5) 4.2 V8 40V: 0.2 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 TFSI
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
AUDIA6 (4B/C5)4.2 V8 40V
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

The biggest fuel consumption difference is between AUDI A6 Sedan (C8) Facelift 2023 45 TFSI and AUDI A6 (4B/C5) 4.2 V8 40V: 5.1 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 TFSI
161 hp/t
120 kW/t
6.2 kg/hp
AUDIA6 (4B/C5)4.2 V8 40V
173 hp/t
129 kW/t
5.8 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 TFSI
797 km
496 mi
AUDIA6 (4B/C5)4.2 V8 40V
631 km
392 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Sedan (C8)Facelift 202345 TFSI
265 hp
198 kW
6.7 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 (4B/C5)4.2 V8 40V
300 hp
224 kW
6.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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 TFSI
Power
265 hp
198 kW
0-100 km/h6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,939 mm
194.4 in
Height
1,457 mm
57.4 in
AUDIA6 (4B/C5)4.2 V8 40V
Power
300 hp
224 kW
0-100 km/h6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,833 mm
190.3 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 TFSI
Power
265 hp
198 kW
0-100 km/h6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
AUDIA6 (4B/C5)4.2 V8 40V
Power
300 hp
224 kW
0-100 km/h6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

AUDI A6 Sedan (C8) Facelift 2023 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
AUDIA6 Sedan (C8)Facelift 202345 TFSI
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
6.7 s
AUDIA6 (4B/C5)4.2 V8 40V
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
6.9 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
AUDIA6 Sedan (C8)Facelift 202345 TFSI
161 hp/t
120 kW/t
6.2 kg/hp
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
AUDIA6 (4B/C5)4.2 V8 40V
173 hp/t
129 kW/t
5.8 kg/hp
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Sedan (C8)Facelift 202345 TFSIAUDIA6 (4B/C5)4.2 V8 40V
Power
265 hp
198 kW
300 hp
224 kW
Torque
370 Nm
273 lb-ft
400 Nm
295 lb-ft
Acceleration
6.7 s
6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,645 kg
3,627 lb
1,730 kg
3,814 lb
Fuel consumption
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 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
4,833 mm
190.3 in
Height
1,453 mm
57.2 in
Range score
797 km
496 mi
631 km
392 mi
CO2 score
-
312 g/km
Trunk score
530 L
18.7 cu ft
434 L
15.3 cu ft
Power-to-weight score
161 hp/t
120 kW/t
6.2 kg/hp
173 hp/t
129 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 A6 Sedan (C8) Facelift 2023 45 TFSIAUDI A6 (4B/C5) 4.2 V8 40V
Consumption7.9 L/100 km29.8 mpg US35.8 mpg UK13 L/100 km18.1 mpg US21.7 mpg UK
Cost / 100 km13.83 LC100 km22.75 LC100 km
Cost / 100 mi22.25 LC100 mi36.61 LC100 mi
Annual fuel used1,185 L313 US gal261 UK gal1,950 L515 US gal429 UK gal
Annual fuel cost2,074 LC/year3,413 LC/year

Head-to-head comparisons

AUDI A6 Sedan (C8) Facelift 2023 45 TFSI

  • Is 85 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Uses 5.1 L/100 km less fuel
  • Has 167 km (104 mi) more estimated range
  • Has 96 L more trunk volume

Pros

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

Cons

  • Lowest power

AUDI A6 (4B/C5) 4.2 V8 40V

  • Has 35 hp more
  • Has 30 Nm more
  • Has 12 hp/t better power-to-weight

Pros

  • Most powerful
  • Highest torque
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 Sedan (C8) 45 TFSI
AUDI A6 (4B/C5) 4.2 V8 40V
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2 vehicles selected

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AUDI A6 Sedan (C8) · Facelift 2023 45 TFSI vs AUDI A6 (4B/C5) 4.2 V8 40V - car comparison - FastVsFaster