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911HybridvsBoxsterPetrol
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  • Specs911 · Boxster

Porsche 911 Turbo S 992 vs Porsche Boxster: 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 · 2025 vs 2013 · 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 Turbo S 992

4,014 €per year

12,3 L/100 km weighted · 26.76 € per 100 km · 1 850 L per year

Gap45 € per yearin favour of the 911 Turbo S (−1 %)≈ 21 L petrol 95
BPorsche Boxster

4,058 €per year

12,5 L/100 km weighted · 27.06 € per 100 km · 1 870 L per year

The verdict changes with your usage
ProfileSplitAA · 911BB · BoxsterGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,484 €5,482 €998 € · 911
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway4,014 €4,058 €Nearly level
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,649 €3,203 €446 € · Boxster

Cumulative saving for the 911 Turbo S

1 year
45 €
3 years
134 €
5 years
223 €
10 years
446 €

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

What produces these figures

WLTP combined
11.8 L/100 km · 9.8 L/100 km
Power
711 ch · 269 ch
Kerb weight
1,725 kg · 1,310 kg

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Boxster vs Z4 sDrive30i

gap 2 699 €/year

Frequently asked questions

On a 100 km mixed trip, the Porsche 911 Turbo S and Porsche Boxster 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.