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M240ivsS3Petrol
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  • ConsumptionConsumptionYearly cost
  • SpecsM240i · S3

BMW M240i Convertible F22 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 M240i Convertible F22

2,614 €per year

8,0 L/100 km weighted · 17.43 € per 100 km · 1 204 L per year

Gap94 € per yearin favour of the M240i Convertible (−3 %)≈ 44 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 · M240iBB · S3Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,977 €2,728 €249 € · S3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,614 €2,708 €94 € · M240i
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,337 €2,669 €332 € · M240i

Cumulative saving for the M240i Convertible

1 year
94 €
3 years
283 €
5 years
472 €
10 years
945 €

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

What produces these figures

WLTP combined
7.6 L/100 km · 8.4 L/100 km
Powertrain
Combustion · Combustion
Power
340 ch · 333 ch
Kerb weight
1,635 kg · 1,535 kg

Other similar comparisons

BMWVSAudi

M240i Convertible vs S3 Sportback

gap 179 €/year
BMWVSAudi

M140i vs S3 Sedan

gap 230 €/year
AudiVSBMW

RS 3 Sedan vs M240i Convertible

gap 430 €/year
BMWVSAudi

M140i xDrive vs S3 Sedan

gap 30 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW M240i Convertible 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 M240i Convertible is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.