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S8PetrolvsGLCBEV
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost

Audi S8 vs Mercedes GLC 400 4MATIC with EQ Technology X254: 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.

limousine · 2025 vs 2025 · 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

AAudi S8

3,694 €per year

11,3 L/100 km weighted · 24.63 € per 100 km · 1 702 L per year

Gap3,282 € per yearin favour of the GLC 400 4MATIC with EQ Technology (−89 %)≈ 1,513 L petrol 95
BMercedes GLC 400 4MATIC with EQ Technology X254

412 €per year

13,7 kWh/100 km weighted · 2.75 € per 100 km · 2 059 kWh per year

The verdict changes with your usage
ProfileSplitAA · S8BB · GLCGap
City70 / 25 / 570 % city · 25 % road · 5 % motorway3,780 €351 €3,430 € · GLC
Mixed30 / 50 / 2030 % city · 50 % road · 20 % motorway3,694 €412 €3,282 € · GLC
Long-distance10 / 40 / 5010 % city · 40 % road · 50 % motorway3,523 €487 €3,035 € · GLC

Cumulative saving for the GLC 400 4MATIC with EQ Technology

1 year
3,282 €
3 years
9,847 €
5 years
16,411 €
10 years
32,823 €

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

What produces these figures

WLTP combined
11.7 L/100 km · 13.2 kWh/100 km
Powertrain
Combustion · Fully electric
Power
571 ch · 489 ch
Kerb weight
2,220 kg · 2,535 kg

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MercedesVSXpeng

GLC 400 4MATIC with EQ Technology vs G6

gap 125 €/year

Frequently asked questions

On a 100 km mixed trip, the Mercedes GLC 400 4MATIC with EQ Technology is about 90% cheaper than the Audi S8 with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The declared range of the Mercedes GLC 400 4MATIC with EQ Technology is 713 km (WLTP/EPA). In real-world conditions, expect 10-20% less.

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

  • SpecsS8 · GLC