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911vsCaymanPetrol
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  • Specs911 · Cayman

Porsche 911 R 991.2 vs Porsche Cayman GT4: 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 2016 · 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 R 991.2

4,801 €per year

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

Gap753 € per yearin favour of the Cayman GT4 (−16 %)≈ 347 L petrol 95
BPorsche Cayman GT4

4,048 €per year

12,4 L/100 km weighted · 26.99 € per 100 km · 1 865 L per year

The verdict changes with your usage
ProfileSplitAA · 911BB · CaymanGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway5,216 €4,522 €694 € · Cayman
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway4,801 €4,048 €753 € · Cayman
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway4,381 €3,680 €701 € · Cayman

Cumulative saving for the Cayman GT4

1 year
753 €
3 years
2,260 €
5 years
3,767 €
10 years
7,534 €

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

What produces these figures

WLTP combined
14.7 L/100 km · 11.9 L/100 km
Powertrain
Combustion · Combustion
Power
500 ch · 385 ch
Kerb weight
1,370 kg · 1,340 kg

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Frequently asked questions

On a 100 km mixed trip, the Porsche Cayman GT4 is about 15% cheaper than the Porsche 911 R with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The Porsche Cayman GT4 is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.