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S3vs120iPetrol
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  • PerformancePerformance0-100, top speed
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  • SpecsS3 · 120i

Audi S3 Sportback vs BMW 120i F20LCI: 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.

compact · 2026 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 S3 Sportback

2,748 €per year

8,4 L/100 km weighted · 18.32 € per 100 km · 1 266 L per year

Gap684 € per yearin favour of the 120i (−25 %)≈ 315 L petrol 95
BBMW 120i F20LCI

2,064 €per year

6,3 L/100 km weighted · 13.76 € per 100 km · 951 L per year

The verdict changes with your usage
ProfileSplitAA · S3BB · 120iGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,813 €2,249 €564 € · 120i
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,748 €2,064 €684 € · 120i
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,620 €1,927 €693 € · 120i

Cumulative saving for the 120i

1 year
684 €
3 years
2,053 €
5 years
3,422 €
10 years
6,844 €

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

What produces these figures

WLTP combined
8.7 L/100 km · 6.1 L/100 km
Powertrain
Combustion · Combustion
Power
333 ch · 184 ch
Kerb weight
1,535 kg · 1,375 kg

Other similar comparisons

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gap 23 €/year
AudiVSBMW

A3 Sedan vs 120i

gap 279 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW 120i is about 25% cheaper than the Audi S3 Sportback with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 120i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.