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RomavsM850iPetrol
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  • SpecsRoma · M850i

Ferrari Roma vs BMW M850i xDrive G15: 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.

sports car · 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

AFerrari Roma

3,606 €per year

11,1 L/100 km weighted · 24.04 € per 100 km · 1 662 L per year

Gap110 € per yearin favour of the M850i xDrive (−3 %)≈ 51 L petrol 95
BBMW M850i xDrive G15

3,496 €per year

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

The verdict changes with your usage
ProfileSplitAA · RomaBB · M850iGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,028 €4,129 €Nearly level
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,606 €3,496 €110 € · M850i
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,278 €3,011 €267 € · M850i

Cumulative saving for the M850i xDrive

1 year
110 €
3 years
329 €
5 years
548 €
10 years
1,097 €

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

What produces these figures

WLTP combined
10.6 L/100 km · 10.0 L/100 km
Powertrain
Combustion · Combustion
Power
620 ch · 530 ch
Kerb weight
1,472 kg · 1,930 kg

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Frequently asked questions

On a 100 km mixed trip, the Ferrari Roma and BMW M850i xDrive 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.