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911vsCayennePetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs911 · Cayenne

Porsche 911 Carrera Cab 991.1 vs Porsche Cayenne (6-speed manual) 958.1: which one uses less fuel?

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

sports car · 2011 vs 2012 · 15,000 km/an · Mixed · Petrol 95 2.03 €/L · Methodology
Annual mileage
15,000 km
5,000 km50,000 km
Driving mix

30 % City · 50 % Road · 20 % Motorway

Fuel price
Petrol 95 2.03 €/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

Result · yearly energy cost

APorsche 911 Carrera Cab 991.1

3,980 €per year

13,1 L/100 km weighted · 26.53 € per 100 km · 1 958 L per year

Gap138 € per yearin favour of the 911 Carrera Cab (−3 %)≈ 68 L petrol 95
BPorsche Cayenne (6-speed manual) 958.1

4,118 €per year

13,5 L/100 km weighted · 27.46 € per 100 km · 2 026 L per year

The verdict changes with your usage
ProfileSplitAA · 911BB · CayenneGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,861 €4,401 €460 € · Cayenne
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,980 €4,118 €138 € · 911
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,422 €3,839 €417 € · 911

Cumulative saving for the 911 Carrera Cab

1 year
138 €
3 years
415 €
5 years
691 €
10 years
1,383 €

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

What produces these figures

WLTP combined
11.4 L/100 km · 13.4 L/100 km
Powertrain
Combustion · Combustion
Power
350 ch · 304 ch
Kerb weight
1,500 kg · 1,995 kg

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AudiVSPorsche

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Frequently asked questions

On a 100 km mixed trip, the Porsche 911 Carrera Cab and Porsche Cayenne (6-speed manual) have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The Porsche 911 Carrera Cab is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.