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M140ivs128tiPetrol
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  • PerformancePerformance0-100, top speed
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  • SpecsM140i · 128ti

BMW M140i xDrive F20LCI vs BMW 128ti 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 2020 · 15,000 km/an · Mixed · 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 M140i xDrive F20LCI

2,731 €per year

8,4 L/100 km weighted · 18.21 € per 100 km · 1 258 L per year

Gap566 € per yearin favour of the 128ti (−21 %)≈ 261 L petrol 95
BBMW 128ti F40

2,165 €per year

6,7 L/100 km weighted · 14.43 € per 100 km · 998 L per year

The verdict changes with your usage
ProfileSplitAA · M140iBB · 128tiGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,063 €2,368 €695 € · 128ti
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,731 €2,165 €566 € · 128ti
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,477 €2,012 €465 € · 128ti

Cumulative saving for the 128ti

1 year
566 €
3 years
1,699 €
5 years
2,832 €
10 years
5,664 €

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

What produces these figures

WLTP combined
8.0 L/100 km · 6.4 L/100 km
Powertrain
Combustion · Combustion
Power
340 ch · 265 ch
Kerb weight
1,540 kg · 1,445 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 128ti is about 20% cheaper than the BMW M140i xDrive with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 128ti is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.