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M3PetrolvsCPHEV
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost

BMW M3 Competition F80 vs Mercedes C 400 e 4MATIC Limousine W206: which is cheaper to run?

What each kilometre costs, depending on your driving profile, how you charge and the share of the trip driven on electricity or fuel.

saloon · 2020 vs 2024 · 15,000 km/an · Mixed · Petrol 95 2.17 €/L · Home 0.20 €/kWh · 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
Charging type

Result · yearly energy cost

ABMW M3 Competition F80

3,581 €per year

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

Gap2,685 € per yearin favour of the C 400 e 4MATIC Limousine (−75 %)≈ 1,237 L petrol 95
BMercedes C 400 e 4MATIC Limousine W206

896 €per year

23,6 kWh/100 km weighted · 5.97 € per 100 km · 1 223 L per year

The verdict changes with your usage
ProfileSplitAA · M3BB · CGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway4,280 €896 €3,385 € · C
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,581 €896 €2,685 € · C
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,040 €896 €2,144 € · C

Cumulative saving for the C 400 e 4MATIC Limousine

1 year
2,685 €
3 years
8,054 €
5 years
13,424 €
10 years
26,848 €

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

What produces these figures

WLTP combined
10.2 L/100 km · 22.7 kWh/100 km
Powertrain
Combustion · Plug-in hybrid
Power
510 ch · 381 ch
Kerb weight
1,730 kg · 2,130 kg

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BMWVSMercedes

M340i xDrive vs C 400 e 4MATIC Limousine

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BMWVSAudi

M3 Competition vs S5 Sedan

gap 1 492 €/year
MercedesVSBMW

C 400 e 4MATIC Limousine vs M440i Gran Coupé

gap 2 434 €/year

Frequently asked questions

On a 100 km mixed trip, the Mercedes C 400 e 4MATIC Limousine is about 75% cheaper than the BMW M3 Competition with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The declared range of the Mercedes C 400 e 4MATIC Limousine is 94 km (WLTP/EPA). In real-world conditions, expect 10-20% less.

The Mercedes C 400 e 4MATIC Limousine is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.

  • SpecsM3 · C