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  • SpecsG · Cayenne

Mercedes G 450 d W463 vs Porsche Cayenne: 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.

luxury SUV · 2024 vs 2019 · 15,000 km/an · Mixed · Diesel 2.38 €/L · 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

AMercedes G 450 d W463

3,687 €per year

10,3 L/100 km weighted · 24.58 € per 100 km · 1 552 L per year

Gap11 € per yearin favour of the G 450 d (−0 %)≈ 5 L petrol 95
BPorsche Cayenne

3,698 €per year

11,4 L/100 km weighted · 24.65 € per 100 km · 1 704 L per year

The verdict changes with your usage
ProfileSplitAA · GBB · CayenneGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,119 €3,903 €217 € · Cayenne
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,687 €3,698 €Nearly level
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,352 €3,522 €170 € · G

Cumulative saving for the G 450 d

1 year
11 €
3 years
32 €
5 years
53 €
10 years
105 €

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

What produces these figures

WLTP combined
9.9 L/100 km · 11.2 L/100 km
Powertrain
Mild hybrid 48 V · Combustion
Power
367 ch · 340 ch
Kerb weight
2,555 kg · 1,985 kg

Other similar comparisons

MercedesVSBMW

G 450 d vs X7 xDrive40d

gap 1 675 €/year
AudiVSPorsche

Q7 SUV vs Cayenne

gap 243 €/year
MercedesVSBMW

G 450 d vs X7 xDrive40d

gap 1 675 €/year
AudiVSPorsche

Q7 SUV vs Cayenne

gap 301 €/year

Frequently asked questions

On a 100 km mixed trip, the Mercedes G 450 d and Porsche Cayenne have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The Mercedes G 450 d is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.