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M440iPetrolvsS4Diesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsM440i · S4

BMW M440i G22 vs Audi S4 TDI: 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.

saloon · 2021 vs 2020 · 15,000 km/an · Mixed · Petrol 95 2.17 €/L · Diesel 2.38 €/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

ABMW M440i G22

2,755 €per year

8,5 L/100 km weighted · 18.37 € per 100 km · 1 270 L per year

Gap223 € per yearin favour of the S4 TDI (−8 %)≈ 103 L petrol 95
BAudi S4 TDI

2,533 €per year

7,1 L/100 km weighted · 16.88 € per 100 km · 1 066 L per year

The verdict changes with your usage
ProfileSplitAA · M440iBB · S4Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,078 €2,829 €249 € · S4
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,755 €2,533 €223 € · S4
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,505 €2,302 €202 € · S4

Cumulative saving for the S4 TDI

1 year
223 €
3 years
668 €
5 years
1,113 €
10 years
2,226 €

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

What produces these figures

WLTP combined
8.1 L/100 km · 6.8 L/100 km
Powertrain
Combustion · Combustion
Power
374 ch · 354 ch
Kerb weight
1,695 kg · 1,805 kg

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Frequently asked questions

On a 100 km mixed trip, the Audi S4 TDI is about 10% cheaper than the BMW M440i with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The Audi S4 TDI is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.