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S8vs911Petrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsS8 · 911

Audi S8 vs Porsche 911 Carrera S (PDK) 991.1: 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 2011 · 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

Gap534 € per yearin favour of the S8 (−13 %)≈ 246 L petrol 95
BPorsche 911 Carrera S (PDK) 991.1

4,228 €per year

13,0 L/100 km weighted · 28.19 € per 100 km · 1 948 L per year

The verdict changes with your usage
ProfileSplitAA · S8BB · 911Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,780 €5,365 €1,585 € · S8
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,694 €4,228 €534 € · S8
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,523 €3,540 €Nearly level

Cumulative saving for the S8

1 year
534 €
3 years
1,601 €
5 years
2,669 €
10 years
5,338 €

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

What produces these figures

WLTP combined
11.7 L/100 km · 10.9 L/100 km
Powertrain
Combustion · Combustion
Power
571 ch · 390 ch
Kerb weight
2,220 kg · 1,455 kg

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Frequently asked questions

On a 100 km mixed trip, the Audi S8 is about 15% cheaper than the Porsche 911 Carrera S (PDK) with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The Audi S8 is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.