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540iPetrolvs320dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs540i · 320d

BMW 540i xDrive G30 vs BMW 320d G20: 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 2019 · 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 540i xDrive G30

2,708 €per year

8,3 L/100 km weighted · 18.05 € per 100 km · 1 248 L per year

Gap969 € per yearin favour of the 320d (−36 %)≈ 447 L petrol 95
BBMW 320d G20

1,739 €per year

4,9 L/100 km weighted · 11.59 € per 100 km · 732 L per year

The verdict changes with your usage
ProfileSplitAA · 540iBB · 320dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,094 €1,914 €1,180 € · 320d
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,708 €1,739 €969 € · 320d
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,405 €1,604 €802 € · 320d

Cumulative saving for the 320d

1 year
969 €
3 years
2,907 €
5 years
4,845 €
10 years
9,689 €

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

What produces these figures

WLTP combined
7.9 L/100 km · 4.7 L/100 km
Powertrain
Combustion · Combustion
Power
340 ch · 190 ch
Kerb weight
1,660 kg · 1,450 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 320d is about 35% cheaper than the BMW 540i xDrive with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 320d is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.