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911vs718Petrol
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  • Specs911 · 718

Porsche 911 GT3 997.2 vs Porsche 718 Boxster GTS PDK: 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 · 2010 vs 2018 · 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 997.2

4,246 €per year

13,0 L/100 km weighted · 28.31 € per 100 km · 1 957 L per year

Gap38 € per yearin favour of the 911 GT3 (−1 %)≈ 17 L petrol 95
BPorsche 718 Boxster GTS PDK

4,283 €per year

13,2 L/100 km weighted · 28.56 € per 100 km · 1 974 L per year

The verdict changes with your usage
ProfileSplitAA · 911BB · 718Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,447 €5,575 €1,128 € · 911
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway4,246 €4,283 €Nearly level
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway4,000 €3,516 €484 € · 718

Cumulative saving for the 911 GT3

1 year
38 €
3 years
113 €
5 years
188 €
10 years
375 €

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

What produces these figures

WLTP combined
13.2 L/100 km · 10.7 L/100 km
Powertrain
Combustion · Combustion
Power
441 ch · 365 ch
Kerb weight
1,395 kg · 1,405 kg

Other similar comparisons

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911 GT3 vs Z4 M40i

gap 2 311 €/year
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718 Boxster GTS PDK vs Z4 M40i

gap 2 361 €/year
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911 GT3 vs Z4 M40i

gap 2 380 €/year
PorscheVSBMW

718 Boxster GTS PDK vs Z4 M40i

gap 2 430 €/year

Frequently asked questions

On a 100 km mixed trip, the Porsche 911 GT3 and Porsche 718 Boxster GTS PDK have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The Porsche 911 GT3 is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.