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X3vsQ8Petrol
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  • SpecsX3 · Q8

BMW X3 M40i G01 vs Audi Q8 SUV: 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 2026 · 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 X3 M40i G01

2,790 €per year

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

Gap838 € per yearin favour of the X3 M40i (−23 %)≈ 386 L petrol 95
BAudi Q8 SUV

3,628 €per year

11,1 L/100 km weighted · 24.18 € per 100 km · 1 672 L per year

The verdict changes with your usage
ProfileSplitAA · X3BB · Q8Gap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,086 €3,694 €608 € · X3
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,790 €3,628 €838 € · X3
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,568 €3,499 €931 € · X3

Cumulative saving for the X3 M40i

1 year
838 €
3 years
2,514 €
5 years
4,190 €
10 years
8,380 €

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

What produces these figures

WLTP combined
8.2 L/100 km · 11.4 L/100 km
Powertrain
Combustion · Combustion
Power
360 ch · 340 ch
Kerb weight
1,845 kg · 2,100 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW X3 M40i is about 25% cheaper than the Audi Q8 SUV with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW X3 M40i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.