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911vsCayennePetrol
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  • Specs911 · Cayenne

Porsche 911 GT3 RS 991.2 vs Porsche Cayenne Coupe: 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.

sports car · 2016 vs 2020 · 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

APorsche 911 GT3 RS 991.2

4,801 €per year

14,8 L/100 km weighted · 32.01 € per 100 km · 2 213 L per year

Gap821 € per yearin favour of the Cayenne Coupe (−17 %)≈ 379 L petrol 95
BPorsche Cayenne Coupe

3,980 €per year

12,2 L/100 km weighted · 26.53 € per 100 km · 1 834 L per year

The verdict changes with your usage
ProfileSplitAA · 911BB · CayenneGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway5,216 €4,446 €770 € · Cayenne
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway4,801 €3,980 €821 € · Cayenne
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway4,381 €3,618 €763 € · Cayenne

Cumulative saving for the Cayenne Coupe

1 year
821 €
3 years
2,464 €
5 years
4,107 €
10 years
8,214 €

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

What produces these figures

WLTP combined
14.7 L/100 km · 11.7 L/100 km
Powertrain
Combustion · Combustion
Power
507 ch · 340 ch
Kerb weight
1,420 kg · 2,115 kg

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Frequently asked questions

On a 100 km mixed trip, the Porsche Cayenne Coupe is about 15% cheaper than the Porsche 911 GT3 RS with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

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