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911Petrolvs218dDiesel
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  • Specs911 · 218d

Porsche 911 Carrera 991.2 vs BMW 218d Convertible F22: 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 · 2017 vs 2018 · 15,000 km/an · Mixed · Petrol 95 2.17 €/L · Diesel 2.38 €/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 Carrera 991.2

3,340 €per year

10,3 L/100 km weighted · 22.26 € per 100 km · 1 539 L per year

Gap1,436 € per yearin favour of the 218d Convertible (−43 %)≈ 662 L petrol 95
BBMW 218d Convertible F22

1,903 €per year

5,3 L/100 km weighted · 12.69 € per 100 km · 801 L per year

The verdict changes with your usage
ProfileSplitAA · 911BB · 218dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,650 €2,044 €1,607 € · 218d
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,340 €1,903 €1,436 € · 218d
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,030 €1,793 €1,238 € · 218d

Cumulative saving for the 218d Convertible

1 year
1,436 €
3 years
4,309 €
5 years
7,182 €
10 years
14,365 €

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

What produces these figures

WLTP combined
10.2 L/100 km · 5.2 L/100 km
Powertrain
Combustion · Combustion
Power
375 ch · 150 ch
Kerb weight
1,430 kg · 1,565 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 218d Convertible is about 45% cheaper than the Porsche 911 Carrera with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 218d Convertible is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.