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911vs911Petrol
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  • Specs911 · 911

Porsche 911 Turbo S 991.2 vs Porsche 911 Carrera 4 GTS 991.1: which one uses less fuel?

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

sports car · 2017 vs 2015 · 15,000 km/an · Mixed · Petrol 95 2.03 €/L · Methodology

Result · yearly energy cost

APorsche 911 Turbo S 991.2

3,440 €per year

11,3 L/100 km weighted · 22.93 € per 100 km · 1 692 L per year

Gap40 €per year in favour of the 911 Turbo S (−1 %)≈ 19 L petrol 95
BPorsche 911 Carrera 4 GTS 991.1

3,479 €per year

11,4 L/100 km weighted · 23.20 € per 100 km · 1 712 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
ProfileSplit911911Gap
City70 % city · 25 % road · 5 % motorway3,650 €3,794 €143 € · 911
Mixed30 % city · 50 % road · 20 % motorway3,440 €3,479 €Nearly level
Long-distance10 % city · 40 % road · 50 % motorway3,239 €3,199 €Nearly level

Cumulative saving for the 911 Turbo S

1 year
40 €
3 years
119 €
5 years
198 €
10 years
396 €

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

What produces these figures

WLTP combined
11.2 L/100 km · 11.2 L/100 km
Powertrain
Combustion · Combustion
Power
588 ch · 480 ch
Kerb weight
1,600 kg · 1,470 kg

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PorscheVSBMW

911 Carrera 4 GTS vs Z4 M40i

gap 1 500 €/year

Frequently asked questions

On a 100 km mixed trip, the Porsche 911 Turbo S and Porsche 911 Carrera 4 GTS have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

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