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BMW X3 M40d G01 vs Porsche Macan S: 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.

family SUV · 2021 vs 2015 · 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 X3 M40d G01

2,210 €per year

6,2 L/100 km weighted · 14.73 € per 100 km · 930 L per year

Gap1,820 € per yearin favour of the X3 M40d (−45 %)≈ 839 L petrol 95
BPorsche Macan S

4,030 €per year

12,4 L/100 km weighted · 26.86 € per 100 km · 1 857 L per year

The verdict changes with your usage
ProfileSplitAA · X3BB · MacanGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,424 €4,319 €1,896 € · X3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,210 €4,030 €1,820 € · X3
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,039 €3,724 €1,685 € · X3

Cumulative saving for the X3 M40d

1 year
1,820 €
3 years
5,460 €
5 years
9,100 €
10 years
18,200 €

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

What produces these figures

WLTP combined
6.0 L/100 km · 12.4 L/100 km
Powertrain
Combustion · Combustion
Power
340 ch · 340 ch
Kerb weight
2,020 kg · 1,865 kg

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X4 M40i vs Macan S

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Frequently asked questions

On a 100 km mixed trip, the BMW X3 M40d is about 45% cheaper than the Porsche Macan S with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW X3 M40d is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.