Car comparison

AUDI A6 Sedan (C8) · Facelift 2023 40 TDIvsAUDI A6 Avant (C9) 2.0 TDI

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

New comparison

AUDI A6 Sedan (C8) · Facelift 2023

40 TDI

204 hp1968 ccDieselAWDAutomaticTurbochargedSedan2023-2025
VS

AUDI A6 Avant (C9)

2.0 TDI

204 hp1968 ccDieselFWDAutomaticTurbochargedWagon / estate2025-present

Comparison overview

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

Best choices

AUDI A6 Sedan (C8) Facelift 2023 40 TDI

  • Quickest 0-100 km/h
    7.4 s
  • Fastest top speed
    246 km/h
    153 mph
  • Most powerful
    204 hp
    152 kW
  • Highest torque
    400 Nm
    295 lb-ft
  • Lightest
    1,705 kg
    3,759 lb
  • Best power-to-weight
    120 hp/t
    89 kW/t
    8.4 kg/hp
  • Largest trunk
    530 L
  • Best performance score
    54/100

AUDI A6 Avant (C9) 2.0 TDI

  • Lowest combined fuel consumption
    5.7 L/100 km
    41.3 mpg US
    49.6 mpg UK
  • Best estimated range
    1,053 km
    654 mi
  • Best overall score
    62/100
  • Best economy score
    91/100
  • Best practicality score
    83/100

Specification comparison

Specification comparison
ModelAUDIA6 Sedan (C8)Facelift 202340 TDIAUDIA6 Avant (C9)2.0 TDI
Power
204hp152kW
204hp152kW
Torque
400Nm295lb-ft
400Nm295lb-ft
Curb weight
1,705kg3,759lb
1,930kg4,255lb
Gross weight
2,325kg5,126lb
2,555kg5,633lb
Top speed
246 km/h
153 mph
241 km/h
150 mph
To 99% top speed
74.3s99% target: 244 km/h / 151 mph
Calculated
82.2s99% target: 239 km/h / 148 mph
Calculated
0-100 km/h
7.4s
7.9s
0-200 km/h
25.5s
Calculated
29.0s
Calculated
0-60 mph
7.1s
Calculated
7.5s
Calculated
Fuel consumption
6.2L/100 km37.9mpg US45.6mpg UK
5.7L/100 km41.3mpg US49.6mpg UK
Quarter mile
15.2s
Calculated
15.7s
Calculated
Power-to-weight
120hp/t89kW/t54hp/1000 lb
Calculated
106hp/t79kW/t48hp/1000 lb
Calculated
Torque-to-weight
235Nm/t157lb-ft/ton
Calculated
207Nm/t139lb-ft/ton
Calculated
Estimated range
1,016km631mi
Calculated
1,053km654mi
Calculated
Displacement
1,968cc120cu in
1,968cc120cu in
Length
4,939mm194in
4,999mm197in
Width
1,886mm74in
1,875mm74in
Height
1,457mm57in
1,472mm58in
Wheelbase
2,924mm115in
2,923mm115in
Front track
1,630mm64in
1,631mm64in
Rear track
1,617mm64in
1,616mm64in
Trunk volume
530L
466L
Max trunk volume
995L
1,497L
Doors
4
5
Seats
5
5
Fuel tank
63L
60L

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 40 TDIAUDI A6 Avant (C9) 2.0 TDIPowerTorque
  • AUDI A6 Sedan (C8) Facelift 2023 40 TDI: Power / Torque
  • AUDI A6 Avant (C9) 2.0 TDI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Sedan (C8)Facelift 202340 TDI3,800-4,200 rpm1,750-3,250 rpm4,450 rpm
AUDIA6 Avant (C9)2.0 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
MetricAUDIA6 Sedan (C8)Facelift 202340 TDIAUDIA6 Avant (C9)2.0 TDI
Acceleration checkpoints
0-60 mph
0-97 km/h
7.1 s
7.5 s
0-100 km/h
0-62 mph
7.4 s
7.9 s
0-200 km/h
0-124 mph
25.5 s
29.0 s
Top speed
246 km/h
153 mph
241 km/h
150 mph
Drag race simulation
60 ft
18 m
2.7 s
2.7 s
330 ft
101 m
6.9 s
7.0 s
1/8 mile
201 m
10.2 s
10.4 s
1000 ft
305 m
12.9 s
13.3 s
1/4 mile
402 m
15.2 s
15.7 s
Trap speed
1/4 mile
402 m
158 km/h
98 mph
153 km/h
95 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202340 TDI
204 hp
152 kW
AUDIA6 Avant (C9)2.0 TDI
204 hp
152 kW

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202340 TDI
400 Nm
295 lb-ft
AUDIA6 Avant (C9)2.0 TDI
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 202340 TDI
1,705 kg
3,759 lb
AUDIA6 Avant (C9)2.0 TDI
1,930 kg
4,255 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 202340 TDI
246 km/h
153 mph
AUDIA6 Avant (C9)2.0 TDI
241 km/h
150 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 202340 TDI7.4 s
AUDIA6 Avant (C9)2.0 TDI7.9 s

The biggest 0-100 km/h difference is between AUDI A6 Sedan (C8) Facelift 2023 40 TDI and AUDI A6 Avant (C9) 2.0 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
AUDIA6 Sedan (C8)Facelift 202340 TDI
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
AUDIA6 Avant (C9)2.0 TDI
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

The biggest fuel consumption difference is between AUDI A6 Avant (C9) 2.0 TDI and AUDI A6 Sedan (C8) Facelift 2023 40 TDI: 0.5 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 202340 TDI
120 hp/t
89 kW/t
8.4 kg/hp
AUDIA6 Avant (C9)2.0 TDI
106 hp/t
79 kW/t
9.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202340 TDI
1,016 km
631 mi
AUDIA6 Avant (C9)2.0 TDI
1,053 km
654 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Sedan (C8)Facelift 202340 TDI
204 hp
152 kW
7.4 s
246 km/h
153 mph
AUDIA6 Avant (C9)2.0 TDI
204 hp
152 kW
7.9 s
241 km/h
150 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 202340 TDI
Power
204 hp
152 kW
0-100 km/h7.4 s
Top speed
246 km/h
153 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 Avant (C9)2.0 TDI
Power
204 hp
152 kW
0-100 km/h7.9 s
Top speed
241 km/h
150 mph
Doors/seats
5 doors
5 seats
Trunk
466 L
16.5 cu ft
Length
4,999 mm
196.8 in
Height
1,472 mm
58.0 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 202340 TDI
Power
204 hp
152 kW
0-100 km/h7.4 s
Top speed
246 km/h
153 mph
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
AUDIA6 Avant (C9)2.0 TDI
Power
204 hp
152 kW
0-100 km/h7.9 s
Top speed
241 km/h
150 mph
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

AUDI A6 Sedan (C8) Facelift 2023 40 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
AUDIA6 Sedan (C8)Facelift 202340 TDI
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
7.4 s
AUDIA6 Avant (C9)2.0 TDI
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
7.9 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 202340 TDI
120 hp/t
89 kW/t
8.4 kg/hp
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
AUDIA6 Avant (C9)2.0 TDI
106 hp/t
79 kW/t
9.5 kg/hp
5.7 L/100 km
41.3 mpg US
49.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Sedan (C8)Facelift 202340 TDIAUDIA6 Avant (C9)2.0 TDI
Power
204 hp
152 kW
204 hp
152 kW
Torque
400 Nm
295 lb-ft
400 Nm
295 lb-ft
Acceleration
7.4 s
7.9 s
Top speed
246 km/h
153 mph
241 km/h
150 mph
Lightness
1,705 kg
3,759 lb
1,930 kg
4,255 lb
Fuel consumption
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
5.7 L/100 km
41.3 mpg US
49.6 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
5 doors
5 seats
Trunk
466 L
16.5 cu ft
Length
4,999 mm
196.8 in
Height
1,472 mm
58.0 in
Range score
1,016 km
631 mi
1,053 km
654 mi
Trunk score
530 L
18.7 cu ft
466 L
16.5 cu ft
Power-to-weight score
120 hp/t
89 kW/t
8.4 kg/hp
106 hp/t
79 kW/t
9.5 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 A6 Sedan (C8) Facelift 2023 40 TDIAUDI A6 Avant (C9) 2.0 TDI
Consumption6.2 L/100 km37.9 mpg US45.6 mpg UK5.7 L/100 km41.3 mpg US49.6 mpg UK
Cost / 100 km10.85 LC100 km9.98 LC100 km
Cost / 100 mi17.46 LC100 mi16.05 LC100 mi
Annual fuel used930 L246 US gal205 UK gal855 L226 US gal188 UK gal
Annual fuel cost1,628 LC/year1,496 LC/year

Head-to-head comparisons

AUDI A6 Sedan (C8) Facelift 2023 40 TDI

  • Is 225 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Has 14 hp/t better power-to-weight
  • Has 64 L more trunk volume

Pros

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

Cons

  • Highest combined fuel consumption

AUDI A6 Avant (C9) 2.0 TDI

  • Uses 0.5 L/100 km less fuel
  • Has 37 km (23 mi) more estimated range

Pros

  • Lowest combined fuel consumption
  • Best estimated range

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 Sedan (C8) 40 TDI
AUDI A6 Avant (C9) 2.0 TDI
Compare selected cars
2 vehicles selected

Popular comparisons

40 TDI
40 TDI
VS
AUDIA6 Sedan (C8)Facelift 202340 TDIvsAUDIA6 Sedan (C8)40 TDI
2.0 TDI
40 TDI
VS
AUDIA6 Avant (C9)2.0 TDIvsAUDIA6 Avant (C8)Facelift 202340 TDI
2.0 TDI
40 TDI
VS
AUDIA6 Avant (C9)2.0 TDIvsAUDIA6 allroad (C8)40 TDI
40 TDI
2.0 TDI
VS
AUDIA6 Sedan (C8)Facelift 202340 TDIvsAUDIA6 Avant (C9)2.0 TDI
2.0 TDI
40 TDI
VS
AUDIA6 Avant (C9)2.0 TDIvsAUDIA6 Avant (C8)40 TDI
2.0 TDI
2.0 TDI
VS
AUDIA6 Avant (C9)2.0 TDIvsAUDIA6 Avant (4G/C7)Facelift 20162.0 TDI
40 TDI
2.8 V6 30V
VS
AUDIA6 Sedan (C8)Facelift 202340 TDIvsAUDIA6 (4A/C4)2.8 V6 30V
2.0 TDI
2.0 TDI
VS
AUDIA6 Avant (C9)2.0 TDIvsAUDIA6 Avant (4G/C7)Facelift 20142.0 TDI
2.0 TDI
3.0 TDI V6
VS
AUDIA6 Avant (C9)2.0 TDIvsAUDIA6 allroad (C9)3.0 TDI V6
40 TDI
2.7 V6
VS
AUDIA6 Sedan (C8)Facelift 202340 TDIvsAUDIA6 (4B/C5)Facelift 20012.7 V6
2.0 TDI
40 TDI
VS
AUDIA6 Avant (C9)2.0 TDIvsAUDIA6 Sedan (C8)Facelift 202340 TDI
40 TDI
2.7 T V6
VS
AUDIA6 Sedan (C8)Facelift 202340 TDIvsAUDIA6 (4B/C5)2.7 T V6
AUDI A6 Sedan (C8) · Facelift 2023 40 TDI vs AUDI A6 Avant (C9) 2.0 TDI - car comparison - FastVsFaster