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i3sBEVvs118dDiesel
  • MotorwayMotorwayRange and charging
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  • Specsi3s · 118d

BMW i3s I01 vs BMW 118d F40: 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 2019 · 15,000 km/an · Mixed · Diesel 2.38 €/L · Home 0.20 €/kWh · 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
Charging type

Result · yearly energy cost

ABMW i3s I01

456 €per year

15,2 kWh/100 km weighted · 3.04 € per 100 km · 2 278 kWh per year

Gap1,112 € per yearin favour of the i3s (−71 %)≈ 468 L diesel
BBMW 118d F40

1,568 €per year

4,4 L/100 km weighted · 10.45 € per 100 km · 660 L per year

The verdict changes with your usage
ProfileSplitAA · i3sBB · 118dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway388 €1,657 €1,269 € · i3s
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway456 €1,568 €1,112 € · i3s
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway539 €1,475 €936 € · i3s

Cumulative saving for the i3s

1 year
1,112 €
3 years
3,337 €
5 years
5,562 €
10 years
11,124 €

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

What produces these figures

WLTP combined
14.6 kWh/100 km · 4.4 L/100 km
Powertrain
Fully electric · Combustion
Power
184 ch · 150 ch
Kerb weight
1,290 kg · 1,400 kg

Other similar comparisons

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gap 2 466 €/year
BMWVSAudi

118d vs A3 Sportback

gap 190 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW i3s is about 70% cheaper than the BMW 118d with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The declared range of the BMW i3s is 330 km (WLTP/EPA). In real-world conditions, expect 10-20% less.

The BMW i3s is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.