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M850ivsM4Petrol
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  • SpecsM850i · M4

BMW M850i xDrive G15 vs BMW M4 Competition Coupe G82: 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.

limousine · 2020 vs 2021 · 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 M850i xDrive G15

3,496 €per year

10,7 L/100 km weighted · 23.31 € per 100 km · 1 611 L per year

Gap85 € per yearin favour of the M850i xDrive (−2 %)≈ 39 L petrol 95
BBMW M4 Competition Coupe G82

3,581 €per year

11,0 L/100 km weighted · 23.87 € per 100 km · 1 650 L per year

The verdict changes with your usage
ProfileSplitAA · M850iBB · M4Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,129 €4,280 €151 € · M850i
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,496 €3,581 €Nearly level
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,011 €3,040 €Nearly level

Cumulative saving for the M850i xDrive

1 year
85 €
3 years
254 €
5 years
423 €
10 years
846 €

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

What produces these figures

WLTP combined
10.0 L/100 km · 10.2 L/100 km
Powertrain
Combustion · Combustion
Power
530 ch · 510 ch
Kerb weight
1,930 kg · 1,725 kg

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Panamera Turbo vs M850i xDrive

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BMWVSAudi

M4 Competition Coupe vs S5 Sedan

gap 1 492 €/year

Frequently asked questions

On a 100 km mixed trip, the BMW M850i xDrive and BMW M4 Competition Coupe have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The BMW M850i xDrive is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.