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Home›Consumption›BMW 640d vs Audi A6

Consumption comparison

BMW 640d xDrive Gran Turismo G32 vs Audi A6 Avant TDI quattro S tronic 220 kW: how much do I save per year?

Same car, two powertrains. The simulator below calculates the gap based on your mileage and charging type.

BMWDiesel

640d xDrive Gran Turismo G32

66 L · 2018

6,1 L/100km

VS
AudiDieselMost economical

A6 Avant TDI quattro S tronic 220 kW

60 L · 2026

6,3 L/100km

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO

Annual mileage

15 000 km/an

5 000 km50 000 km

Simulated driving mix

Drag anywhere on the bar to adjust

Fuel price

Petrol 95 : 1,99 €/L·Diesel : 1,75 €/L

Annual energy cost · 15 000 km

Typical annual usage : Mix 30% city / 50% road / 20% motorway

BMWPetrol

640d xDrive Gran Turismo G32

Annual energy cost · 15 000 km

1 656€

11,04 € / 100 km

Equivalent to 832 L of petrol 95 per year

Weighted consumption
6,3 L/100km
Fuel price
1,75 €/L
Fuel used
946,5 L per year
AudiPetrolMost economical

A6 Avant TDI quattro S tronic 220 kW

Annual energy cost · 15 000 km

1 605€

10,70 € / 100 km

Equivalent to 806 L of petrol 95 per year

Weighted consumption
6,1 L/100km
Fuel price
1,75 €/L
Fuel used
916,9 L per year
Annual gap A6 Avant TDI quattro S tronic 220 kW vs 640d xDrive Gran Turismo+52 €/an≈ 30 L diesel

Audi A6 Avant TDI quattro S tronic 220 kW costs 52 €/an less in energy than BMW 640d xDrive Gran Turismo G32, over 15 000 km for this driving mix.

≈ 30 L of diesel saved per year

Your savings over the ownership period

Cumulative projection by annual mileage. The cheaper-to-run vehicle widens the gap year after year.

Annual mileage

15 000 km/an

1 year

52 €

≈ 26 L petrol 95

3 years

155 €

≈ 78 L petrol 95

5 years

259 €

≈ 130 L petrol 95

10 years

518 €

≈ 260 L petrol 95

Cumulative savings for Audi A6 Avant TDI quattro S tronic 220 kW versus BMW 640d xDrive Gran Turismo G32. Excluding purchase, insurance, maintenance and depreciation.

Annual fuel cost breakdown

Projection over 15 000 km/year.

BMW

640d xDrive Gran Turismo G32

Fuelkm/year€/kmAnnual cost
Annual fuel1,75 €/L15 000 km0,110 €/km1 656 €
Audi

A6 Avant TDI quattro S tronic 220 kW

Fuelkm/year€/kmAnnual cost
Annual fuel1,75 €/L15 000 km0,107 €/km1 605 €

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Frequently asked questions

On a 100 km mixed trip, the BMW 640d xDrive Gran Turismo and Audi A6 Avant TDI quattro S tronic 220 kW have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The BMW 640d xDrive Gran Turismo is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.