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X5vsCayennePetrol
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  • SpecsX5 · Cayenne

BMW X5 M50i G05 vs Porsche Cayenne Turbo: 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.

large SUV · 2019 vs 2015 · 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

ABMW X5 M50i G05

3,694 €per year

11,3 L/100 km weighted · 24.63 € per 100 km · 1 703 L per year

Gap149 € per yearin favour of the X5 M50i (−4 %)≈ 69 L petrol 95
BPorsche Cayenne Turbo

3,844 €per year

11,8 L/100 km weighted · 25.62 € per 100 km · 1 771 L per year

The verdict changes with your usage
ProfileSplitAA · X5BB · CayenneGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,248 €4,294 €Nearly level
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,694 €3,844 €149 € · X5
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,271 €3,494 €223 € · X5

Cumulative saving for the X5 M50i

1 year
149 €
3 years
448 €
5 years
746 €
10 years
1,492 €

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

What produces these figures

WLTP combined
10.7 L/100 km · 11.3 L/100 km
Powertrain
Combustion · Combustion
Power
530 ch · 520 ch
Kerb weight
2,250 kg · 2,185 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW X5 M50i and Porsche Cayenne Turbo have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The BMW X5 M50i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.