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A4 40vs318dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsA4 40 · 318d

Audi A4 40 TDI vs BMW 318d Touring 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.

saloon · 2020 vs 2019 · 15,000 km/an · Mixed · Diesel 2.38 €/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 A4 40 TDI

1,750 €per year

4,9 L/100 km weighted · 11.67 € per 100 km · 737 L per year

Gap21 € per yearin favour of the A4 40 TDI (−1 %)≈ 9 L diesel
BBMW 318d Touring G20

1,771 €per year

5,0 L/100 km weighted · 11.81 € per 100 km · 746 L per year

The verdict changes with your usage
ProfileSplitAA · A4 40BB · 318dGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway1,956 €1,926 €Nearly level
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway1,750 €1,771 €Nearly level
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway1,591 €1,654 €62 € · A4 40

Cumulative saving for the A4 40 TDI

1 year
21 €
3 years
63 €
5 years
104 €
10 years
208 €

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

What produces these figures

WLTP combined
4.7 L/100 km · 4.8 L/100 km
Powertrain
Combustion · Combustion
Power
190 ch · 150 ch
Kerb weight
1,575 kg · 1,575 kg

Other similar comparisons

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VolvoVSBMW

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Frequently asked questions

On a 100 km mixed trip, the Audi A4 40 TDI and BMW 318d Touring have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.

The Audi A4 40 TDI is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.