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X3PetrolvsAtto 3BEV
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BMW X3 M40i G01 vs BYD Atto 3 Extended Range: 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 · 2020 vs 2022 · 15,000 km/an · Mixed · Petrol 95 2.17 €/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 X3 M40i G01

2,790 €per year

8,6 L/100 km weighted · 18.60 € per 100 km · 1 285 L per year

Gap2,328 € per yearin favour of the Atto 3 Extended Range (−83 %)≈ 1,073 L petrol 95
BBYD Atto 3 Extended Range

462 €per year

15,4 kWh/100 km weighted · 3.08 € per 100 km · 2 307 kWh per year

The verdict changes with your usage
ProfileSplitAA · X3BB · Atto 3Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,086 €442 €2,644 € · Atto 3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,790 €462 €2,328 € · Atto 3
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,568 €480 €2,089 € · Atto 3

Cumulative saving for the Atto 3 Extended Range

1 year
2,328 €
3 years
6,984 €
5 years
11,640 €
10 years
23,279 €

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

What produces these figures

WLTP combined
8.2 L/100 km · 15.5 kWh/100 km
Powertrain
Combustion · Fully electric
Power
360 ch · 204 ch
Kerb weight
1,845 kg · 1,750 kg

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Frequently asked questions

On a 100 km mixed trip, the BYD Atto 3 Extended Range is about 85% cheaper than the BMW X3 M40i with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The declared range of the BYD Atto 3 Extended Range is 420 km (WLTP/EPA). In real-world conditions, expect 10-20% less.

The BYD Atto 3 Extended Range is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.

X3
· Atto 3