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M8vsS3Petrol
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  • SpecsM8 · S3

BMW M8 Competition Coupe F92 vs Audi S3 Sportback: 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.

limousine · 2021 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 M8 Competition Coupe F92

3,984 €per year

12,2 L/100 km weighted · 26.56 € per 100 km · 1 836 L per year

Gap1,236 € per yearin favour of the S3 Sportback (−31 %)≈ 570 L petrol 95
BAudi S3 Sportback

2,748 €per year

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

The verdict changes with your usage
ProfileSplitAA · M8BB · S3Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,869 €2,813 €2,056 € · S3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,984 €2,748 €1,236 € · S3
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,307 €2,620 €687 € · S3

Cumulative saving for the S3 Sportback

1 year
1,236 €
3 years
3,708 €
5 years
6,180 €
10 years
12,361 €

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

What produces these figures

WLTP combined
11.2 L/100 km · 8.7 L/100 km
Powertrain
Combustion · Combustion
Power
625 ch · 333 ch
Kerb weight
1,900 kg · 1,535 kg

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Frequently asked questions

On a 100 km mixed trip, the Audi S3 Sportback is about 30% cheaper than the BMW M8 Competition Coupe with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The Audi S3 Sportback is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.