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RS6vsM5Petrol
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  • SpecsRS6 · M5

Audi RS6 Performance Avant vs BMW M5 Competition F90: which is cheaper to run?

What each kilometre costs, depending on your driving profile and how you charge. Annual projection and cumulative savings over 10 years.

grand tourer · 2023 vs 2018 · 15,000 km/an · Mixed · Petrol 95 2.17 €/L · Methodology
Annual mileage
15,000 km
5,000 km50,000 km
Driving mix

30 % City · 50 % Road · 20 % Motorway

Fuel price
Petrol 95 2.17 €/L · Diesel 2.38 €/Lprix-carburants.gouv.fr — moyenne nationale du 05/10/2026 ; EDF Tarif Bleu Base au 01/08/2026 ; DC autoroute : moyenne des réseaux sans abonnement

Result · yearly energy cost

AAudi RS6 Performance Avant

4,082 €per year

12,5 L/100 km weighted · 27.21 € per 100 km · 1 881 L per year

Gap273 € per yearin favour of the M5 Competition (−7 %)≈ 126 L petrol 95
BBMW M5 Competition F90

3,808 €per year

11,7 L/100 km weighted · 25.39 € per 100 km · 1 755 L per year

The verdict changes with your usage
ProfileSplitAA · RS6BB · M5Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,560 €4,484 €Nearly level
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway4,082 €3,808 €273 € · M5
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,711 €3,317 €394 € · M5

Cumulative saving for the M5 Competition

1 year
273 €
3 years
820 €
5 years
1,367 €
10 years
2,734 €

Energy only. Excludes purchase, insurance, servicing, depreciation.

What produces these figures

WLTP combined
12.0 L/100 km · 10.8 L/100 km
Powertrain
Combustion · Combustion
Power
630 ch · 625 ch
Kerb weight
2,175 kg · 1,865 kg

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BMWVSAudi

M5 Competition vs A6 Sedan TFSI quattro S tronic 270 kW

gap 1 404 €/year

Frequently asked questions

On a 100 km mixed trip, the Audi RS6 Performance Avant and BMW M5 Competition have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The BMW M5 Competition is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.