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840dHybridvsPanameraPetrol
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  • PerformancePerformance0-100, top speed
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  • Specs840d · Panamera

BMW 840d xDrive G15 vs Porsche Panamera: 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.

limousine · 2020 vs 2018 · 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

ABMW 840d xDrive G15

2,170 €per year

6,1 L/100 km weighted · 14.47 € per 100 km · 914 L per year

Gap1,065 € per yearin favour of the 840d xDrive (−33 %)≈ 491 L petrol 95
BPorsche Panamera

3,235 €per year

9,9 L/100 km weighted · 21.57 € per 100 km · 1 491 L per year

The verdict changes with your usage
ProfileSplitAA · 840dBB · PanameraGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,427 €3,486 €1,059 € · 840d
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,170 €3,235 €1,065 € · 840d
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway1,978 €3,008 €1,030 € · 840d

Cumulative saving for the 840d xDrive

1 year
1,065 €
3 years
3,195 €
5 years
5,325 €
10 years
10,650 €

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

What produces these figures

WLTP combined
5.8 L/100 km · 9.8 L/100 km
Powertrain
Mild hybrid 48 V · Combustion
Power
340 ch · 335 ch
Kerb weight
1,915 kg · 1,815 kg

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AudiVSBMW

A8 55 TFSI quattro tiptronic 250 kW MHEV vs 840d xDrive

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PorscheVSBMW

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gap 972 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW 840d xDrive is about 35% cheaper than the Porsche Panamera with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 840d xDrive is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.