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M550dvs125dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsM550d · 125d

BMW M550d xDrive G30 vs BMW 125d F20LCI: 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.

grand tourer · 2018 vs 2018 · 15,000 km/an · Mixed · 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 M550d xDrive G30

2,445 €per year

6,9 L/100 km weighted · 16.30 € per 100 km · 1 029 L per year

Gap695 € per yearin favour of the 125d (−28 %)≈ 292 L diesel
BBMW 125d F20LCI

1,750 €per year

4,9 L/100 km weighted · 11.67 € per 100 km · 737 L per year

The verdict changes with your usage
ProfileSplitAA · M550dBB · 125dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,687 €1,876 €811 € · 125d
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,445 €1,750 €695 € · 125d
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,260 €1,647 €613 € · 125d

Cumulative saving for the 125d

1 year
695 €
3 years
2,085 €
5 years
3,475 €
10 years
6,950 €

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

What produces these figures

WLTP combined
6.6 L/100 km · 4.8 L/100 km
Powertrain
Combustion · Combustion
Power
400 ch · 224 ch
Kerb weight
1,845 kg · 1,480 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 125d is about 30% cheaper than the BMW M550d xDrive with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 125d is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.