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  • SpecsBoxster · 911

Porsche Boxster Spyder vs Porsche 911 Carrera (Manual) 991.1: 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 · 2016 vs 2011 · 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 Boxster Spyder

3,838 €per year

11,8 L/100 km weighted · 25.58 € per 100 km · 1 769 L per year

Gap411 € per yearin favour of the Boxster Spyder (−10 %)≈ 189 L petrol 95
BPorsche 911 Carrera (Manual) 991.1

4,248 €per year

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

The verdict changes with your usage
ProfileSplitAA · BoxsterBB · 911Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,105 €5,189 €1,084 € · Boxster
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,838 €4,248 €411 € · Boxster
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,558 €3,653 €Nearly level

Cumulative saving for the Boxster Spyder

1 year
411 €
3 years
1,232 €
5 years
2,053 €
10 years
4,106 €

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

What produces these figures

WLTP combined
11.8 L/100 km · 11.4 L/100 km
Powertrain
Combustion · Combustion
Power
375 ch · 350 ch
Kerb weight
1,315 kg · 1,445 kg

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Frequently asked questions

On a 100 km mixed trip, the Porsche Boxster Spyder is about 10% cheaper than the Porsche 911 Carrera (Manual) with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

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