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225dDieselvs420iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs225d · 420i

BMW 225d Convertible F22 vs BMW 420i F32: 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.

compact · 2018 vs 2020 · 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 225d Convertible F22

1,821 €per year

5,1 L/100 km weighted · 12.14 € per 100 km · 767 L per year

Gap151 € per yearin favour of the 225d Convertible (−8 %)≈ 70 L petrol 95
BBMW 420i F32

1,973 €per year

6,1 L/100 km weighted · 13.15 € per 100 km · 909 L per year

The verdict changes with your usage
ProfileSplitAA · 225dBB · 420iGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway1,948 €2,194 €246 € · 225d
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway1,821 €1,973 €151 € · 225d
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway1,718 €1,803 €85 € · 225d

Cumulative saving for the 225d Convertible

1 year
151 €
3 years
454 €
5 years
757 €
10 years
1,513 €

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

What produces these figures

WLTP combined
5.0 L/100 km · 5.8 L/100 km
Powertrain
Combustion · Combustion
Power
224 ch · 184 ch
Kerb weight
1,625 kg · 1,525 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 225d Convertible is about 10% cheaper than the BMW 420i with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 225d Convertible is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.