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S8vs430iPetrol
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  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsS8 · 430i

Audi S8 vs BMW 430i Convertible G22: 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 · 2025 vs 2021 · 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 S8

3,694 €per year

11,3 L/100 km weighted · 24.63 € per 100 km · 1 702 L per year

Gap1,526 € per yearin favour of the 430i Convertible (−41 %)≈ 703 L petrol 95
BBMW 430i Convertible G22

2,168 €per year

6,7 L/100 km weighted · 14.45 € per 100 km · 999 L per year

The verdict changes with your usage
ProfileSplitAA · S8BB · 430iGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,780 €2,389 €1,391 € · 430i
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,694 €2,168 €1,526 € · 430i
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,523 €1,999 €1,524 € · 430i

Cumulative saving for the 430i Convertible

1 year
1,526 €
3 years
4,579 €
5 years
7,632 €
10 years
15,265 €

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

What produces these figures

WLTP combined
11.7 L/100 km · 6.4 L/100 km
Powertrain
Combustion · Combustion
Power
571 ch · 258 ch
Kerb weight
2,220 kg · 1,715 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 430i Convertible is about 40% cheaper than the Audi S8 with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 430i Convertible is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.