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. /SUV
X3vs420dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsX3 · 420d

BMW X3 xDrive30d G01 vs BMW 420d 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.

family SUV · 2021 vs 2020 · 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 X3 xDrive30d G01

2,071 €per year

5,8 L/100 km weighted · 13.80 € per 100 km · 872 L per year

Gap520 € per yearin favour of the 420d (−25 %)≈ 219 L diesel
BBMW 420d F32

1,550 €per year

4,4 L/100 km weighted · 10.34 € per 100 km · 653 L per year

The verdict changes with your usage
ProfileSplitAA · X3BB · 420dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,260 €1,666 €593 € · 420d
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,071 €1,550 €520 € · 420d
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway1,928 €1,468 €460 € · 420d

Cumulative saving for the 420d

1 year
520 €
3 years
1,561 €
5 years
2,602 €
10 years
5,203 €

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

What produces these figures

WLTP combined
5.6 L/100 km · 4.2 L/100 km
Powertrain
Combustion · Combustion
Power
286 ch · 190 ch
Kerb weight
1,930 kg · 1,605 kg

Other similar comparisons

BMWVSAudi

X3 xDrive30d vs Q5 Sportback

gap 328 €/year
AudiVSBMW

A4 40 TDI vs 420d

gap 267 €/year
BMWVSTesla

X3 xDrive30d vs Model Y Long Range RWD

gap 2 134 €/year
VolvoVSBMW

S60 B4 vs 420d

gap 515 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW 420d is about 25% cheaper than the BMW X3 xDrive30d with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 420d is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.