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CayennevsQ8Diesel
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  • SpecsCayenne · Q8

Porsche Cayenne Diesel 958.1 vs Audi Q8 SUV: which one uses less fuel?

Same car, two powertrains. The simulator below calculates the gap based on your mileage and charging type.

large SUV · 2013 vs 2026 · 15,000 km/an · Mixed · Diesel 2.25 €/L · Methodology

Result · yearly energy cost

APorsche Cayenne Diesel 958.1

2,781 €per year

8,3 L/100 km weighted · 18.54 € per 100 km · 1 238 L per year

Gap352 €per year in favour of the Cayenne Diesel (−11 %)≈ 157 L diesel
BAudi Q8 SUV

3,133 €per year

9,3 L/100 km weighted · 20.89 € per 100 km · 1 395 L per year

Annual mileage
15,000 km
5,000 km50,000 km
Driving mix
Fuel price : Petrol 95 2.03 €/L · Diesel 2.25 €/Lprix-carburants.gouv.fr — moyenne nationale du 25/08/2026 ; EDF Tarif Bleu Base au 01/08/2026 ; DC autoroute : moyenne des réseaux sans abonnement
The verdict changes with your usage
ProfileSplitCayenneQ8Gap
City70 % city · 25 % road · 5 % motorway3,107 €3,501 €393 € · Cayenne
Mixed30 % city · 50 % road · 20 % motorway2,781 €3,133 €352 € · Cayenne
Long-distance10 % city · 40 % road · 50 % motorway2,528 €2,848 €320 € · Cayenne

Cumulative saving for the Cayenne Diesel

1 year
352 €
3 years
1,056 €
5 years
1,760 €
10 years
3,521 €

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

What produces these figures

WLTP combined
7.9 L/100 km · 8.9 L/100 km
Powertrain
Combustion · Combustion
Power
243 ch · 231 ch
Kerb weight
2,175 kg · 2,160 kg

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Frequently asked questions

On a 100 km mixed trip, the Porsche Cayenne Diesel is about 10% cheaper than the Audi Q8 SUV with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

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