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BMW X4 M40i G02 vs BMW X3 xDrive30d G01: 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 · 2018 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

ABMW X4 M40i G02

3,105 €per year

9,5 L/100 km weighted · 20.70 € per 100 km · 1 431 L per year

Gap899 € per yearin favour of the X3 xDrive30d (−29 %)≈ 414 L petrol 95
BBMW X3 xDrive30d G01

2,206 €per year

6,2 L/100 km weighted · 14.71 € per 100 km · 929 L per year

The verdict changes with your usage
ProfileSplitAA · X4BB · X3Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,486 €2,356 €1,130 € · X3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,105 €2,206 €899 € · X3
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,812 €2,099 €713 € · X3

Cumulative saving for the X3 xDrive30d

1 year
899 €
3 years
2,697 €
5 years
4,496 €
10 years
8,992 €

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

What produces these figures

WLTP combined
9.1 L/100 km · 6.0 L/100 km
Powertrain
Combustion · Combustion
Power
354 ch · 265 ch
Kerb weight
1,825 kg · 1,820 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW X3 xDrive30d is about 30% cheaper than the BMW X4 M40i with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW X3 xDrive30d is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.