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Q7Dieselvs318iPetrol
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  • SpecsQ7 · 318i

Audi Q7 SUV vs BMW 318i G20: 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.

large SUV · 2026 vs 2020 · 15,000 km/an · Mixed · Diesel 2.38 €/L · 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

AAudi Q7 SUV

2,904 €per year

8,1 L/100 km weighted · 19.36 € per 100 km · 1 222 L per year

Gap974 € per yearin favour of the 318i (−34 %)≈ 410 L diesel
BBMW 318i G20

1,930 €per year

5,9 L/100 km weighted · 12.87 € per 100 km · 890 L per year

The verdict changes with your usage
ProfileSplitAA · Q7BB · 318iGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway2,971 €2,139 €833 € · 318i
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway2,904 €1,930 €974 € · 318i
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway2,769 €1,767 €1,002 € · 318i

Cumulative saving for the 318i

1 year
974 €
3 years
2,921 €
5 years
4,869 €
10 years
9,738 €

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

What produces these figures

WLTP combined
8.4 L/100 km · 5.7 L/100 km
Powertrain
Combustion · Combustion
Power
231 ch · 156 ch
Kerb weight
2,100 kg · 1,490 kg

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Frequently asked questions

On a 100 km mixed trip, the BMW 318i is about 35% cheaper than the Audi Q7 SUV with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The BMW 318i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.