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911vsCaymanPetrol
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  • PerformancePerformance0-100, top speed
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  • Specs911 · Cayman

Porsche 911 Carrera Cab 991.1 vs Porsche Cayman S Manual: 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 · 2011 vs 2010 · 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 Carrera Cab 991.1

4,248 €per year

13,1 L/100 km weighted · 28.32 € per 100 km · 1 958 L per year

Gap20 € per yearin favour of the Cayman S Manual (−0 %)≈ 9 L petrol 95
BPorsche Cayman S Manual

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 · 911BB · CaymanGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway5,189 €5,365 €176 € · 911
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway4,248 €4,228 €Nearly level
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,653 €3,540 €112 € · Cayman

Cumulative saving for the Cayman S Manual

1 year
20 €
3 years
60 €
5 years
101 €
10 years
201 €

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

What produces these figures

WLTP combined
11.4 L/100 km · 10.9 L/100 km
Powertrain
Combustion · Combustion
Power
350 ch · 324 ch
Kerb weight
1,500 kg · 1,350 kg

Other similar comparisons

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911 Carrera Cab vs Z4 M40i

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BMWVSPorsche

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911 Carrera Cab vs Z4 M40i

gap 2 383 €/year
BMWVSPorsche

Z4 M40i vs Cayman S Manual

gap 2 356 €/year

Frequently asked questions

On a 100 km mixed trip, the Porsche 911 Carrera Cab and Porsche Cayman S Manual have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

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