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620dHybridvs318dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs620d · 318d

BMW 620d Gran Turismo G32 vs BMW 318d Steptronic 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 · 2021 vs 2019 · 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 620d Gran Turismo G32

1,664 €per year

4,7 L/100 km weighted · 11.10 € per 100 km · 701 L per year

Gap29 € per yearin favour of the 318d Steptronic (−2 %)≈ 12 L diesel
BBMW 318d Steptronic G20

1,636 €per year

4,6 L/100 km weighted · 10.91 € per 100 km · 689 L per year

The verdict changes with your usage
ProfileSplitAA · 620dBB · 318dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway1,757 €1,723 €Nearly level
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway1,664 €1,636 €Nearly level
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway1,586 €1,568 €Nearly level

Cumulative saving for the 318d Steptronic

1 year
29 €
3 years
86 €
5 years
143 €
10 years
285 €

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

What produces these figures

WLTP combined
4.6 L/100 km · 4.5 L/100 km
Powertrain
Mild hybrid 48 V · Combustion
Power
190 ch · 150 ch
Kerb weight
1,835 kg · 1,455 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 620d Gran Turismo and BMW 318d Steptronic have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The BMW 318d Steptronic is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.