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M140ivsS3Petrol
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  • SpecsM140i · S3

BMW M140i F20LCI vs Audi S3 Sedan: 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 · 2018 vs 2026 · 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

ABMW M140i F20LCI

2,536 €per year

7,8 L/100 km weighted · 16.90 € per 100 km · 1 169 L per year

Gap173 € per yearin favour of the M140i (−6 %)≈ 80 L petrol 95
BAudi S3 Sedan

2,708 €per year

8,3 L/100 km weighted · 18.05 € per 100 km · 1 248 L per year

The verdict changes with your usage
ProfileSplitAA · M140iBB · S3Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,868 €2,728 €140 € · S3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,536 €2,708 €173 € · M140i
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,282 €2,669 €387 € · M140i

Cumulative saving for the M140i

1 year
173 €
3 years
518 €
5 years
863 €
10 years
1,726 €

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

What produces these figures

WLTP combined
7.4 L/100 km · 8.4 L/100 km
Powertrain
Combustion · Combustion
Power
340 ch · 333 ch
Kerb weight
1,470 kg · 1,535 kg

Other similar comparisons

BMWVSAudi

M140i vs S3 Sportback

gap 283 €/year
BMWVSAudi

M140i xDrive vs S3 Sedan

gap 30 €/year
AudiVSBMW

RS 3 Sedan vs M140i

gap 534 €/year
BMWVSAudi

M240i vs S3 Sedan

gap 243 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW M140i and Audi S3 Sedan have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The BMW M140i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.