Skip to main content
CaralogyCaralogy
HomeBrandsRoad TripBudgetDuelGuides
Caralogy

The car comparison platform. Physics simulation, road trips, real costs.

Navigation
All brandsCar duelRunning costsMotorwayMethodology
Simulators
Motorway simulatorRunning costsPerformance duel
Brands
VolkswagenBMWMercedesToyotaTeslaAudi
FRENDEESIT
© 2026 Caralogy · All rights reserved
  1. Home
  2. /Consumption
  3. /Sedans
i4BEVvsM340dHybrid
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs

BMW i4 M50 xDrive G26 vs BMW M340d xDrive 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.

saloon · 2024 vs 2020 · 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 i4 M50 xDrive G26

615 €per year

20,5 kWh/100 km weighted · 4.10 € per 100 km · 3 073 kWh per year

Gap1,409 € per yearin favour of the i4 M50 xDrive (−70 %)≈ 593 L diesel
BBMW M340d xDrive G20

2,024 €per year

5,7 L/100 km weighted · 13.50 € per 100 km · 852 L per year

The verdict changes with your usage
ProfileSplitAA · i4BB · M340dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway523 €2,368 €1,845 € · i4
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway615 €2,024 €1,409 € · i4
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway727 €1,764 €1,037 € · i4

Cumulative saving for the i4 M50 xDrive

1 year
1,409 €
3 years
4,228 €
5 years
7,047 €
10 years
14,094 €

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

What produces these figures

WLTP combined
19.7 kWh/100 km · 5.3 L/100 km
Powertrain
Fully electric · Mild hybrid 48 V
Power
544 ch · 340 ch
Kerb weight
2,215 kg · 1,908 kg

Other similar comparisons

BMWVSTesla

i4 M50 xDrive vs Model 3 Performance

gap 126 €/year
AudiVSBMW

S4 TDI vs M340d xDrive

gap 678 €/year
BMWVSTesla

i4 M50 xDrive vs Model 3 Performance

gap 126 €/year
BMWVSAudi

M340d xDrive vs A5 Avant

gap 38 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW i4 M50 xDrive is about 70% cheaper than the BMW M340d xDrive with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

BMW M340d xDrive offers more range: 1113 km vs 510 km for BMW i4 M50 xDrive (WLTP/EPA). In real motorway use, expect 10-20% less depending on temperature.

The BMW i4 M50 xDrive is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.

i4
· M340d