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  • SpecsS · iX3

Mercedes S 580 e 4MATIC W223 vs BMW iX3 G08: which is cheaper to run?

What each kilometre costs, depending on your driving profile, how you charge and the share of the trip driven on electricity or fuel.

limousine · 2026 vs 2020 · 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

AMercedes S 580 e 4MATIC W223

1,337 €per year

18,9 kWh/100 km weighted · 8.91 € per 100 km · 1 379 L per year

Gap743 € per yearin favour of the iX3 (−56 %)≈ 343 L petrol 95
BBMW iX3 G08

593 €per year

19,8 kWh/100 km weighted · 3.95 € per 100 km · 2 964 kWh per year

The verdict changes with your usage
ProfileSplitAA · SBB · iX3Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway1,337 €505 €832 € · iX3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway1,337 €593 €743 € · iX3
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway1,337 €701 €635 € · iX3

Cumulative saving for the iX3

1 year
743 €
3 years
2,230 €
5 years
3,717 €
10 years
7,434 €

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

What produces these figures

WLTP combined
18.2 kWh/100 km · 19.0 kWh/100 km
Powertrain
Plug-in hybrid · Fully electric
Power
585 ch · 286 ch
Kerb weight
2,515 kg · 2,185 kg

Other similar comparisons

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S 580 e 4MATIC vs 760i xDrive

gap 2 526 €/year
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gap 164 €/year
PorscheVSMercedes

Panamera Turbo S E-Hybrid vs S 580 e 4MATIC

gap 383 €/year
TeslaVSBMW

Model Y Juniper RWD vs iX3

gap 169 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW iX3 is about 55% cheaper than the Mercedes S 580 e 4MATIC with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

BMW iX3 offers more range: 460 km vs 92 km for Mercedes S 580 e 4MATIC (WLTP/EPA). In real motorway use, expect 10-20% less depending on temperature.

The BMW iX3 is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.